40mm Low1

40mm Low-Velocity Low-Velocity Grenades G renades Gary's U.S. Infantry Weapons Reference Guide DESCRIPTION This page describes the most commonly used 40mm low-velocity rounds for the U.S. M320, M203,, and M79 grenade launchers. These rounds M203 r ounds include high-explosive, high-explosive, illuminating, signaling, CS, training, and multi-purpose a mmunition. mmunition. If fired into snow or mud, 40mm rounds may not hit hard enough to detonate. An undetonated round may explode when stepped on or driven over. During training in snow or mud, avoid this hazard by firing only TP rounds.

40mm grenade launcher ammunition a mmunition.. Model

Type

Length

Weight

Arming Range

8 - 10 ft (2.4 - 3 m)

Casualty radius: 427 ft (130 m) Kill radius: 16 ft (5 m)

Effect

M381

HE

3.89 in 0.503 lb (98.8 mm) (0.23 kg)

M382

Practice

3.89 in 0.50 lb (98.8 mm) (0.23 kg)

8 - 10 ft (2.4 - 3 m)

Danger radius: 66 ft (20 m)

HE

3.89 in 0.50 lb (98.8 mm) (0.23 kg)

45 - 90 ft (14 - 27 m)


HE

4.05 in (102.9 mm)

0.51 lb (0.23 kg)

45 - 90 ft (14 - 27 m)


M406

HE

3.894 in 0.503 lb (98.9 mm) (0.23 kg)

45 - 90 ft (14 - 27 m)


M407A1

Practice

3.894 in 0.50 lb (98.9 mm) (0.23 kg)

45 - 90 ft (14 - 27 m)


45 - 90 ft (14 - 27 m)

Casualty radius: 427 ft (130 m) Incapacitation radius: 49 ft (15 m) Kill radius: 16 ft (5 m)

M386

M397, M397, M397A1

M433

HEDP

4.05 in (102.9 mm)

0.507 lb (0.23 kg)

8 - 10 ft (2.4 - 3 m)


N/A

Maximum range: 98 ft (30 m)

M441

HE

3.89 in 0.503 lb (98.8 mm) (0.23 kg)

M576

Buckshot

2.646 in 0.254 lb (67.2 mm) (0.12 kg)

M583, M583, M583A1

White Star Parachute

5.272 in (133.9 mm)

0.49 lb (0.22 kg)

N/A

90,000 candlepower. 656 ft (200 meters) in diameter for 40 seconds

M585

White Star Cluster

5.268 in (133.8 mm)

0.41 lb (0.19 kg)

N/A

55,000 candlepower for 7 seconds

M651

CS

4.57 in (116.1 mm)

0.63 lb (0.29 kg)

33 - 98 ft (10 - 30 m)

Area Coverage: 144 yd² (120 m²)

M661

Green Star Parachute

5.272 in (133.9 mm)

0.49 lb (0.22 kg)

N/A


M662

Red Star Parachute

5.272 in (133.9 mm)

0.49 lb (0.22 kg)

N/A


M676, M676, M680,, M680 M682

Smoke Canopy

5.212 in (132.4 mm)

0.48 lb (0.22 kg)

?

Smoke burn time: 90 seconds minimum

M713, M713, M715,, M715 M716

Smoke Ground Marker

3.91 in 0.49 lb (99.3 mm) (0.22 kg)

50 - 150 ft (15 - 45 m)

Smoke burn time: 17 seconds minimum

Practice

4.05 in (102.9 mm)

N/A


IR Star Parachute

5.272 in (133.9 mm)

0.49 lb (0.22 kg)

N/A

Max visible candlepower: 350. 30 seconds minimum burn time.

M1006

Non-Lethal

3.95 in (100.3 mm)

0.15 lb (0.068 kg)

N/A

Engagement Range: 33 164 ft (10 - 50 m)

M1029

Non-Lethal

4.8 in (121.9 mm)

0.47 lb (0.213 kg)

M781

M992

0.45 lb (0.205 kg)

N/A

N/A

M381 40mm HE Cartridge

Complete Round Type Classification Date

HE 1972

Unit Cost

?

Length

3.89 in (98.8 mm)

Weight

0.503 lb (0.23 kg) Projectile

Body Material

Aluminum skirt and steel wire ball

Color

Olive drab with yellow markings, yellow ogive

Filler

32 g Composition B

Fuze

M552 point detonating Case Components

Cartridge Case Propellant Primer

M118 330 mg M9 M42 percussion Performance

Maximum Range

1,312 ft (400 m)

Muzzle Velocity

250 fps (76 mps)

Arming Range Effective Bursting Area

8 - 10 ft (2.4 - 3 m) Casualty radius: 427 ft (130 m) Kill radius: 16 ft (5 m)

Use: The M381 cartridge is a high explosive round designed to inflict personnel casualties from ground burst effect. Description: The cartridge is a fixed round of ammunition consisting of a projectile assembly and a cartridge case assembly.

The projectile has a hollow, one-piece aluminum body containing rotating bands. A hollow aluminum ogive is fitted to the front end of the projectile. A hollow steel ball assembly containing the bursting charge is fitted into the rear r ear of the projectile proj ectile body. A booster charge with a point detonating fuze is threaded into a well in the forward side of the ball. The projectile assembly is press-fitted press-fitted into a cartridge case. The T he case is a hollow, aluminum bi-chambered cylinder with an annealed brass propellant cup fitted into the cartridge base. The cup contains the propelling charge with a percussion primer in the center. The cup acts as a high pressure chamber and the hollow cavity in the case, which surrounds the cup, acts as a low pressure chamber. The fuze contains an inertial ring operating through push pins and levers upon a detonator. Functioning:

The weapon firing pin strikes the percussion primer igniting the propelling charge in the high pressure chamber. The burning propelling charge generates sufficient pressure to rupture the propellant cup forcing the expanding gases through vent holes into the low-pressure cha mber. The rotating band around the projectile engages the rifling in the launcher tube to impart spin of 3,600 RPM to the projectile. The pressure created by the expanding propellant gases in the low-pressure chamber forces the projectile through the launcher barrel with a muzzle velocity of 76 meters per second (250 fps). Setback force from firing causes the firing pin in the fuze to be withdrawn from the rotor ball detent, and centrifugal force from projectile rotation causes the rotor ball assembly to align the detonator with the explosive train. The fuze arms a fter the projectile has traveled approximately 2.4 to 3 meters (8 feet) from the launcher. Upon graze or impact with the target, inertia causes the inertial ring to act on the push pins, pivoting the levers inward to force the firing pin into the detonator. The detonator ignites the booster charge, and the booster detonates the explosive charge, producing blast and fragmentation of the projectile body.

M382 40mm Practice Cartridge

Complete Round Type

Practice

Classification Date 1964 Unit Cost

?

Length

3.89 in (98.8 mm)

Weight


Aluminum skirt and steel ball

Body Material Color

Olive drab with yellow markings

Filler

4.54 g inert yellow dye

Fuze



M118 330 mg M9 percussion Performance

Maximum Range

1,312 ft (400 m)

Muzzle Velocity

250 fps (76 mps)

Arming Range

8 - 10 ft (2.4 - 3 m)

Danger Radius

66 ft (20 m)

Use: The M382 cartridge is a practice impact type round. Description: This cartridge is a fixed round of a mmunition consisting of a projectile body and a cartridge case assembly containing a propelling charge and a percussion primer.

A hollow, aluminum ogive is fitted to the front end of the projectile. Fitted in the rear of the projectile is a hollow steel ball assembly containing a yellow dye marking material. An RDX booster pellet with a point detonating fuze assembly is threaded into a cavity at the forward side of the ball assembly. The projectile assembly is press-fitted into the cartridge case. The case is a hollow aluminum bi-chambered cylinder with an annealed brass propellant cup assembly fitted into the center of the cartridge base. The cup contains the propelling charge with a percussion primer in the center and acts as a high-pressure chamber. The hollow cavity in the case, which surrounds the cup, acts as a low-pressure chamber. The fuze contains an inertial ring operating through push pins and levers on the firing pin. Functioning: The weapon firing pin strikes the percussion primer igniting the propelling charge in the high pressure chamber. The burning propelling charge generates sufficient pressure to rupture the propellant cup and to force the expanding gases from the burning propellant through vent holes into the low-pressure chamber.

The rotating band around the projectile engages the rifling in the launcher tube imparting a spin of 3600 rpm to the projectile and a muzzle velocity of 76 mps. The pressure created by the expanding propellant gases in the ]ow-pressure cha mber forces the projectile through the launcher barrel. After the projectile leaves the launcher tube, setback force causes the firing pin in the fuze t o be withdrawn from the ball detent, and centrifugal force created by rotation of the projectile causes the rotor ball assembly to align the detonator with the explosive train. The fuze arms after the projectile has traveled approximately 2.4 to 3 meters (8 feet) from the launcher. Upon graze or impact with the target, the inertial force from impact causes the inertial ring to act on the push pins, pivoting the levers inward, and forcing the firing pin into the detonator. The detonator explodes the RDX booster pellet which shatters the chamber and emits a yellow puff of smoke to simulate the explosion of a service round.


Complete Round Type

HE

Classification Date

?

Unit Cost

?

Length

3.89 in (98.8 mm)

Weight

0.503 lb (0.23 kg)

Projectile Body Material


Color


Filler

32 g Composition B

Fuze



M118 330 mg M9 M42 or FED 100 percussion Performance

Maximum Range

1,312 ft (400 m)

Muzzle Velocity

250 fps (76 mps)


45 - 90 ft (14 - 27 m) Casualty radius: 427 ft (130 m) Kill radius: 16 ft (5 m)

Use: The M386 cartridge is a high explosive round designed to inflict personnel casualties from ground burst effect. Description: The cartridge is a fixed round of ammunition consisting of an aluminum projectile body with a rotating band, and cartridge case containing the propelling charge and percussion primer.

A steel ball-shaped assembly containing the high explosive charge is fitted into the rear of the projectile. The ball assembly has an open well on the forward side. A point detonating fuze with booster charge is threaded into the well. The fuze is covered by an aluminum ogive forming the nose of the projectile. The projectile body is press-fitted into the cartridge case. The case is a bi-chambered aluminum cylinder with an annealed brass propellant cup fitted into the center of the base. The cup contains the propelling charge and the percussion primer is fitted in the center. The cup acts as a high-pressure chamber while the cavity in the case surrounding the cup acts as a low-pressure chamber. Functioning: The weapon firing pin strikes the percussion primer igniting the propelling charge in the high pressure chamber. The burning propelling charge generates sufficient pressure t o rupture the propellant cup and force the exploding gases through the vent holes into the low-pressure chamber.

The rotating band around the projectile engages the rifling in the launcher tube imparting spin

to the projectile. The pressure created by the expanding propellant gases in the low-pressure chamber forces the projectile through the tube with a muzzle velocity of 76 meters per second. After the projectile leaves the launcher tube, setback causes a fuze setback pin to move reward and clear the fuze rotor which is held in an unarmed position by a firing pin, centrifugal lock, and the setback pin in the fuze assembly. Centrifugal force, generated by the rotation of the projectile, causes three pivoted inertial weights and the fuze centrifugal lock to move outward. This action causes the spring loaded firing pin and lock to retract from the rotor and gear train, respectively. The rotor, now free t o rotate, aligns the fuze detonator with the explosive train. A fuze escapement mechanism delays arming by controlling rotor movement. The fuze arms after the projectile has traveled at least 14 meters (45 feet) from the launcher tube. Upon impact with the target, the firing pin is for ced into the detonator. The detonator triggers the booster charge, in turn, detonating the high-explosive bursting charge, producing a blast and fragmentation of the projectile body.

M397 40mm HE (Jump-Up Fragmentation) Cartridge

Complete Round Type

HE

Classification Date

?

Unit Cost

?

Length

4.05 in (102.9 mm)

Weight


Body Material


Color


Filler

32 g OCTOL

Fuze




Maximum Range

1,312 ft (400 m)

Muzzle Velocity

250 fps (76 mps)



Use: The M397 cartridge is a high explosive round designed to inflict personnel casualties using air burst effect. Description: The cartridge is a fixed round consisting of an aluminum projectile body with rotating band press-fitted into a cartridge case containing a propelling charge and percussion primer.

A hollow steel ball assembly containing the HE charge and a delay detonator is fitted into the rear of the projectile. A point detonating fuze with a separation charge is threaded into a well on the front side of the ball. The cartridge case is a bi-chambered aluminum cylinder with an annealed brass cup pressed into the center of the base. The cup contains the propelling charge and the percussion primer extends into the center of the charge. The cup constitutes a high-pressure chamber, and the hollow cavity in the case surrounding the cup acts as a low-pressure chamber. Functioning: The weapon firing pin strikes the primer to ignite the propelling charge. The burning propellant ruptures the propellant cup, and the expanding-gases are vented into the low pressure chamber to propel the projectile through the tube with a muzzle velocity of 76 meters per second.

The rotating band engages the spiral lands in the launcher tube to impart spin to the projectile. Setback from firing withdraws a lock pin from the fuze rotor. After the projectile leaves the launcher, centrifugal force from rotation withdraws the firing pin from the rotor and releases a centrifugal lock from the fuze gear train. The rotor then turns, restrained by an escapement mechanism, to line up the rotor detonator with the separation charge. This rotor movement is complete when the projectile has traveled at least 14 meters (45 feet) from the weapon. Upon impact, the fuze firing pin is driven into the detonator to explode the separation charge. The separation charge ejects the high explosive assembly upward from the rear of the projectile and simultaneously ignites the delay char ge. Detonation and fragmentation of the HE ball thus occurs at approximately 5 feet above the ground impact point.

M397A1 40mm HE (Jump-Up Fragmentation) Cartridge

Complete Round Type Classification Date Unit Cost

HE 1974 ?

Length

4.05 in (102.9 mm)

Weight


Body Material


Color


Filler

32 g OCTOL

Fuze

M536E1 point detonating Case Components



Maximum Range

1,312 ft (400 m)

Muzzle Velocity

250 fps (76 mps)



Use: The M397A1 cartridge is a high explosive round designed to inflict personnel casualties using air burst effect. The M397A1 functions with improved performance on snow targets in comparison to the performance of the M397 and M406. Description: This cartridge is a fixed round of a mmunition consisting of a one-piece steel projectile body with a metal rotating band and a cartridge case assembly containing the propelling charge and percussion primer.

A hollow ogive is fitted to the front end of the projectile. A hollow steel ball assembly containing a delay detonator, a booster charge, and an HE bursting charge, is fitted into the rear end of the projectile. A point detonating fuze assembly is threaded into the front opening of the ball assembly. The projectile assembly is press-fitted into a cartridge case. The case is a hollow bichambered aluminum cylinder with an annealed brass propellant cup assembly fitted into the center of the cartridge base. The cup contains the propelling charge and a percussion primer in the center. The cup acts as a high-pressure chamber, and the hollow cavity in the case, which surrounds the cup, acts as a low-pressure chamber. Functioning: The weapon firing pin strikes the percussion primer igniting the propelling charge in the high pressure chamber. The burning propelling charge generates sufficient pressure to rupture the propellant cup forcing the expanding gases from the burning propellant through the vent holes into the low-pressure chamber.

The rotating band around the projectile engages the rifling in the launcher tube, imparting spin

to the projectile. The pressure, created by t he expanding propellant gases in the low-pressure chamber, forces the projectile through the tube with a muzzle velocity of 76 meters per second. When the projectile is fired, setback forces cause the fuze setback pin to retract from the fuze rotor causing the bellville type washer to be crushed. This permits the fuze housing assembly containing the rotor to retract from the stationary fuze firing pin. In the unarmed position, a set-back pin, a firing pin, and a centrifugal lock in the fuze assembly, combine to prevent movement of the rotor. This keeps the fuze detonator from aligning with t he separation charge assembly. Centrifugal force, from rotation of the projectile, causes the c entrifugal lock to retract from the fuze gear train. The rotor, now free to rotate, lines up the detonator with the separation charge assembly. A fuze escapment mechanism delays arming by controlling rotor movement. The fuze arms after the projectile has traveled at least 14 meters (45 feet) from the launcher tube. Upon impact with the target, the M55 detonator within the setback sleeve and housing assembly is driven forward into t he firing pin. In turn, the detonator ignites the separation charge assembly which initiates the delay detonator of the auxiliary fuze in the ball assembly. Gas pressure drives the delay detonator into the armed position. Concurrently, the ball assembly with the auxiliary fuze ejects from the rear of the projectile into the air. The pyrotechnic delay detonator in the ball assembly detonates the booster charge, in tur n, detonating the bursting charge 80 milliseconds after ejection. This results in a blast and fragmentation of the ball assembly 5 feet above the impact point.


Complete Round

Type Classification Date Unit Cost

HE 1972 ?

Length

3.894 in (98.9 mm)

Weight


Body Material


Color


Filler

32 g Composition B

Fuze




Maximum Range

1,312 ft (400 m)

Muzzle Velocity

250 fps (76 mps)



Use: The M406 cartridge is a high explosive round designed to inflict personnel casualties using ground burst effect. Description: This cartridge is a fixed round of ammunition consisting of an aluminum projectile body with a rotating band and a cartridge case assembly containing the propelling charge and percussion primer.

A hollow aluminum ogive is fitted to the front end of t he projectile. A steel ball assembly containing a booster charge and a bursting charge is fitted in the rear end of the projectile. A point detonating fuze assembly is threaded into the front opening of the ball assembly. The projectile assembly is press-fitted into a cartridge case. The case is a hollow bichambered aluminum cylinder with an annealed brass propellant cup assembly fitted into the center of the cartridge base. The cup contains the propelling charge and a percussion primer in the center. It acts as a high-pressure chamber while the hollow cavity in the case, which surrounds the cup, acts as a low-pressure chamber.

Functioning: The weapon firing pin strikes the percussion primer igniting the propelling charge in the high pressure chamber. The burning propelling charge generates sufficient pressure to rupture the propellant cup forcing the expanding gases through the vent holes into the low-pressure chamber.

The rotating band around the projectile engages the rifling in the launcher tube imparting a spin of 3,600 rpm to the projectile. The pressure created by the expanding propellant gases in the low-pressure chamber force the projectile through the tube with a muzzle velocity of 76 meters per second. When the projectile is fired, setback forces cause the fuze setback pin to retract from the fuze rotor. The rotor is held in an unarmed position by a firing pin, a centrifugal lock, and the setback pin in the fuze assembly. Centrifugal force, generated by the rotation of t he projectile, causes the three pivoted inertia weights and the centrifugal lock in the fuze to move outward. In turn, the spring loaded firing pin and the lock retract from the rotor and fuze gear train, respectively. The rotor, now free to rotate, lines up the fuze detonator with the explosive train. A fuze escapement mechanism delays ar ming by controlling rotor movement. The fuze arms after the projectile has tra veled at least 14 meters (45 feet) from the launcher tube. Upon impact with the target, the firing pin is forced into the detonator. Concurrently the detonator triggers the booster charge, in turn, detonating the high explosive bursting charge, which produces a blast and fragmentation of the projectile body. The projectile body is wire wrapped so that fragmentation is more uniform on impact.

M407A1 40mm Practice Cartridge

Complete Round

Practice

Type

Classification Date 1964

?

Unit Cost Length

3.894 in (98.9 mm)

Weight


Body Material

Aluminum skirt and plastic ball

Color

Blue with white markings

Filler

Yellow dye

Fuze




Maximum Range

1,312 ft (400 m)

Muzzle Velocity

250 fps (76 mps)

Arming Range

45 - 90 ft (14 - 27 m)

Danger Radius

66 ft (20 m)

Use: The M407A1 cartridge is a fixed practice type ammunition. Replaced by the the M781 practice cartridge. Description: This cartridge is a fixed round of ammunition consisting of an aluminum projectile body with a rotating band and a cartridge case assembly.

A hollow aluminum ogive is fitted to the front end of t he projectile. A plastic ball assembly containing an RDX booster pellet and two yellow smoke pellets is fitted into the rear end of the projectile. A point detonating fuze assembly is threaded into the front opening of the ball assembly. The projectile assembly is press-fitted into a cartridge case. The case is a hollow bichambered aluminum cylinder with an annealed brass propellant cup assembly crimped into the center of the cartridge base. The cup contains the propelling charge and percussion primer in the center. The cup acts as a high-pressure chamber while the hollow cavity in the case,

which surrounds the cup, acts as a low-pressure chamber. Functioning: The weapon firing pin strikes the percussion primer igniting the propelling charge in the high pressure chamber. The burning propelling charge generates sufficient pressure to rupture the propellant cup and to release the expanding propellant gases through the vent holes into t he low-pressure chamber.

The rotating band around the projectile engages the rifling in the launcher tube imparting a spin of 3,600 rpm to the projectile. The pressure, created by the expanding propellant gases in the low-pressure chamber, forces the projectile through the tube with a muzzle velocity of 76 meters per second. When the projectile is fired, setback forces cause the fuze setback pin to retract from the fuze rotor. The rotor is held in an unarmed position by a firing pin, a centrifugal lock, and the setback pin in the fuze assembly. Centrifugal force, generated by the rotation of the projectile, causes the three pivoted inertia weights and the centrifugal lock in the fuze, to move outward. In turn, the spring loaded firing pin and the lock retract from the rotor and fuze gear train, respectively. The rotor, now free to rotate, lines up the fuze detonator with the explosive train. A fuze escapement mechanism delays ar ming by controlling rotor movement. The fuze arms after the projectile has traveled at least 14 to 27 meters (45 to 90 feet) from the launcher tube. Upon impact with the target, the firing pin is forced into the detonator. Concurrently, the detonator ignites the RDX booster pellet which fragments the plastic ball and ignited the two yellow smoke pellets, causing a puff of yellow smoke which simulates explosive impact.

M433 40mm HEDP Cartridge


HEDP 1971 $30 (Fiscal Year 2005), $68 (FY 2010)

Length

4.05 in (102.9 mm)

Weight


Body Material

Aluminum skirt with steel cup attached

Color

Olive drab with white markings, yellow ogive

Filler

45 g Composition A

Fuze

M550 point initiating, base detonating Case Components



Maximum Range

1,312 ft (400 m)

Muzzle Velocity

250 fps (76 mps)

Arming Range

45 - 90 ft (14 - 27 m)

Casualty radius: 427 ft (130 m) Effective Bursting Area Incapacitation radius: 49 ft (15 m) Kill radius: 16 ft (5 m) Use:

The M433 cartridge is a dual purpose impact type round which is designed to penetrate at least two inches of steel ar mor at 0° angle of obliquity and inflict personnel casualties in the target area. This item is Code A, approved for service use. This is a training standard item used in both training and combat. Description: The cartridge is a fixed round of ammunition consisting of a one-piece, aluminum projectile body with rotating band, and a cartridge case assembly.

A hollow aluminum ogive is fitted to the front end of t he projectile. A PIBD fuze assembly with an RDX spit-back charge and copper cone liner is fitted to t he opening of the projectile cavity. The cavity is sealed by the fuze assembly and contains the high explosive shaped charge. The projectile assembly is press-fitted into the cartridge case assembly. The case is a hollow bi-chambered aluminum cylinder with a steel closing plug crimped into the opening of the annealed brass propellant cup assembly in the cartridge base. The propellant cup has vent holes in the sides, is sealed in the bottom by the closing plug, and contains the propelling charge. A percussion primer is crimped into the center of the closing plug. The propellant cup acts as a high-pressure chamber, and the upper hollow cavity in the case acts as a low pressure chamber. Functioning: The weapon firing pin strikes the percussion primer, which ignites the propelling charge. Pressure created by the burning propellant in the high-pressure chamber causes the propellant cup to rupture. The propellant gases escape through vent holes into the low-pressure chamber.

The rotating band around the projectile engages the rifling in the launcher tube to impart a spin of 3,750 rpm to the projectile. Expanding gases in t he low-pressure chamber force the projectile through the tube with a muzzle velocity of 76 meters per second. After the projectile leaves the launcher tube, initial rotation causes the fuze detent to free the fuze rotor. Centrifugal force causes three ha mmer weights to move radially outward, allowing a conical spring to move the firing pin forward, disengaging the rotor. Dynamic imbalance of the rotor causes it to rotate to the armed position, aligning the M55 detonator with the firing pin and the spit-back shaped charge. A fuze escapement mechanism r etards rotor movement, delaying arming until the projectile has traveled at least 45 feet from the launcher tube. Upon impact with the target, the firing pin is driven into the detonator, triggering the spit-bac k shaped charge and producing a jet blast which detonates the HE bursting charge. Detonation of the bursting charge forms an ar mor-piercing jet of molten metal and fragmentation of the projectile body. Effect: The M433 HEDP grenade has a small shaped charge that penetrates better than the HE round. It also has a thin wire wrapping that bursts into a dense fragmentation pattern, creating casualties out to 5 meters. Because they explode on contact, HEDP rounds achieve the same penetration regardless of range.

The high explosive dual purpose round can penetrate 2 inches (50 mm) of armor plate, 12 inches (300 mm) of pine logs, 16 inches (400 mm) of concrete blocks, or 20 inches (500 mm) of sandbags at ranges up to 1,312 feet (400 m). If projected into an interior room, the 40mm HEDP can penetrate all interior partition-type walls. It splinters plywood and plaster walls, making a hole large enough to fire a rifle through. It is better to have HEDP rounds pass into a room and explode on a far wall, even though much of the round's energy is wasted penetrating the back wall. The fragmentation produced in the room causes more casualties than the high-explosive jet formed by the shaped charge. The fragments from the HEDP round do not reliably penetrate interior walls. They are also stopped by office furniture, sandbags, helmets, and protective vests (flak jackets).

Test-fired inert M433 HEDP U.S. Army photo 490x260, 157K, PNG

Test-fired inert M433 HEDP U.S. Army photo 830x500, 528K, PNG

M433 HEDP U.S. Army photo 597x476, 48K, JPEG

M550 Fuze:

y y y

Type Classified: 1971. Over 20 Million fuzes produced. Two independent safety locks: setback pin and one spin detent.


Complete Round Type

HE

Classification Date

?

Unit Cost

?

Length

3.89 in (98.8 mm)

Weight


Body Material


Color


Filler

32 g Composition B

Fuze




Maximum Range

1,312 ft (400 m)

Muzzle Velocity

250 fps (76 mps)


8 - 10 ft (2.4 - 3 m) Casualty radius: 427 ft (130 m) Kill radius: 16 ft (5 m)

Use: The M441 cartridge is a high explosive round designed to inflict personnel casualties using ground burst effect. Description: The cartridge is a fixed round of ammunition consisting of a projectile body with a rotating band and a cartridge case assembly.

A hollow aluminum ogive is fitted to the front of the projectile. A point detonating fuze with a booster charge is threaded into the opening of a steel ball assembly crimped into the projectile base. The ball assembly contains an HE bursting charge. The projectile assembly is press-fitted into the aluminum cartridge case. The case is a hollow bi-chambered cylinder with a metal closing plug crimped into the cartridge case. The propellant cup assembly is sealed by the closing plug in the bottom, and contains the propelling charge. A percussion primer is crimped into a center opening in the closing plug. The propellant cup assembly acts as a high-pressure chamber, and the hollow cavity in the case surrounding the cup acts as a low-pressure chamber. Functioning: The weapon firing pin strikes the primer igniting the propelling charge. Gases from the burning propellant expand in the high-pressure chamber. This pressure r uptures the propellant cup, forcing the gases to escape through the vents into the low-pressure chamber.

The rotating band around the projectile engages the rifling in the launcher tube imparting spin to the projectile. Expanding gases in the low-pressure chamber force the projectile t hrough the tube with a muzzle velocity of 76 meters per second. At the time of firing, setback causes the firing pin to be withdrawn from the fuze rotor detent. Prior to this action, the detonator in the rotor is held out of line with the explosive train. With the rotor free, centrifugal force causes the rotor ball to turn and align the detonator with the firing pin. The fuze arms after the projectile has traveled approximately 2 to 4 meters (8 feet) from the launcher tube. Upon graze or impact, inertia throws the inertial ring forwar d against the push pins. The push pins pivot the levers inward to drive the firing pin int o the detonator. The detonator initiates the booster to detonate the high explosive charge resulting in blast and fragmentation of the projectile body.

M576 40mm Multiple Projectile (Buckshot) Cartridge

Complete Round Type

Buckshot

Classification Date ? Unit Cost

?

Length

2.646 in (67.2 mm)

Weight


Body Material

Molded polyethylene plastic

Color

Black with white markings

Filler

20 24 g metal pellets

Fuze

None Case Components


M199 186 mg M2 0.45 cal, Remington, No. 2-l/2 percussion Performance

Maximum Range Muzzle Velocity Arming Range

98 ft (30 m) 885 fps (269 mps) N/A

Use: The M576 cartridge is intended for use in counter-insurgency a nd conventional operations in jungle environments, particularly during periods of poor visibility where personnel targets appear at short distances without warning and are vulnerably exposed only fleetingly. Description: The cartridge is a fixed round of ammunition consisting of a multiple projectile assembly and a cartridge case assembly.

The projectile assembly includes a polyethylene sabot carrier with one center cavity and several smaller cavities around the outside perimeter. A plastic pellet cup filled with 20 metal pellets is fitted into the center cavity and is covered by a snap on cap. The outer cavities act as air scoops. An obturator on the rear of the sabot serves as a propellant gas seal between the cartridge case and the sabot. The round has no mechanical-type fuze. The projectile assembly is crimped into the cartridge case. The case is a hollow bi-chambered cylinder with a metal closing plug crimped into the open well of the propellant chamber in the cartridge base. The propellant chamber acts as a high-pressure chamber and has t en vent holes in the top sealed by a copper disk. The upper hollow cavity in the case serves as a low pressure chamber. A percussion primer is crimped into a center opening in the closing plug. Functioning: The weapon firing pin strikes the primer which ignites the propelling charge. Gases from the burning propellant expand in the high-pressure chamber. The pressure ruptures the copper disk allowing the expanding gases to escape through the vent holes into the low-pressure

chamber. Continuing gas expansion forces the projectile through the launcher tube. Setback force fr om cartridge ignition causes the pellet cup in the sabot carrier to move rearward. This movement disengages the cap from the pellet cup. Upon reaching the muzzle, t he sabot carrier and pellet cup are discarded allowing the metal pellets free flight to the target. Effect: Though it is a multipurpose round, the M576 is most effective in t hick vegetated areas or for room clearing. Be sure to aim buckshot rounds at the foot of the target.

M583, M583A1 40mm White Star Parachute Cartridge M661 40mm Green Star Parachute Cartridge M662 40mm Red Star Parachute Cartridge

Complete Round Type

Star Parachute

Classification Date

M583A1: 1985

Unit Cost

M583: $39 (Fiscal Year 2005), M583: $53 (Fiscal Year 2007), M661: $73 (Fiscal Year 2010)

Length

5.272 in (133.9 mm)

Weight


Body Material

Impact or bar alloy aluminum

Color

White with black markings

Filler

Illumination composition. M583A1: 93 g. M661: 86 g. M662: 85 g

Fuze




Burst Height Muzzle Velocity Arming Range Average Candlepower

600 ft (183 m) 250 fps (76 mps) N/A M583A1: 90,000. M661: 8,000. M662: 20,000.

Use: The star parachute round is used for illumination and signals and is lighter a nd more accurate than comparable handheld signal rounds. This item is Code A, approved for service use. This is a training standard item used in both training and combat. Description: The cartridge is a fixed round of ammunition consisting of a projectile assembly and a cartridge case assembly.

The projectile has a one piece, hollow aluminum body with a metal rotating band. A plastic ogive, embossed with a raised letter for night identification of payload, is snapped into an Oring in the front opening of the projectile cavity. The cavity contains a pyrotechnic flare candle assembly, and an integral ignition/ejection charge attached to a 20 inch dia meter parachute. The projectile has a 4 to 5 second delay ignition element crimped into the center opening of a metal delay carrier. The projectile is press-fitted into an O-ring in the front opening of the cartridge case. The case is a hollow bi-chambered cylinder with a metal closing plug crimped into the base of the cartridge case. The propellant cup is sealed on the bottom by the closing plug. The cup acts as a high-pressure chamber, and the cavity in the case surrounding the cup acts as a low-pressure chamber. A percussion primer is crimped into a center opening in the closing plug. Functioning:

The weapon firing pin strikes the primer igniting the propelling charge. Gases from the burning propellant expand in the high-pressure chamber. This pressure r uptures the propellant cup, and the pressure escapes through the vent holes into the low-pressure chamber, propelling the projectile forward with the velocity required to reach the burst altitude. The burning propellant also ignites the .5 second delay element in the base of the projectile. The rotating band engages the rifling in the launcher tube to impart a spin of 3,750 rpm to the projectile. At the end of the delay, the delay element ignites the ejection charge. The ejection charge ignites the candle and blows the candle assembly out t hrough the top of the projectile body. The attached parachute deploys upon ejection to lower the candle at 7 feet per second (2 mps). The candle burns for approximately 40 seconds. The candle functions at an altitude of 500 to 700 feet when fired vertically and is visible to an air observer at a slant range of at least 3 miles from 3000 feet altitude.

M583A1 White U.S. Army photo 627x477, 65K, JPEG

M661 Green U.S. Army photo 626x477, 63K, JPEG

M662 Red U.S. Army photo 627x477, 64K, JPEG

M585 40mm White Star Cluster Cartridge


White Star Cluster ? $48 (Fiscal Year 2005), $46 (FY 2008)

Length

5.268 in (133.8 mm)

Weight


Body Material


Color

White with black markings

Filler

85 g illumination composition (each pellet 17 g)

Fuze




Burst Height Muzzle Velocity Arming Range

548 ft (167 m) 250 fps (76 mps) N/A

Average Candlepower 55,000 Burn Time

5 seconds minimum

Use: The M585 cartridge is designed for illumination and signaling with less weight and bulk and greater accuracy than comparable hand-held signals. This item is Code A, approved for service use. This is a training standard item used in both training and combat. Description: The cartridge is a fixed round of ammunition consisting of a projectile assembly and a cartridge case assembly.

The projectile has a one piece, hollow aluminum body with a rotating band. A plastic ogive, embossed with a raised "W" for night identification of payload color and five raised dots t o identify a cluster round, is snapped into an O-ring in the front opening of the projectile cavity. The cavity contains an illuminant candle assembly of five white star char ges and a black powder ejection charge. The star charges ar e contained in phenolic-coated Kraft paper and mounted on a base plug of similar material over the ejection charge. A 5 second delay pyrotechnic ignition charge is fitted into the center of the projectile base. The projectile assembly is fitted into the cartridge case. The case is a hollow bi-chambered cylinder with a metal closing plug crimped into the base of the cartridge case. The propellant cup is sealed at the bottom by the closing plug. The cup acts as a high-pressure chamber, and the cavity surrounding the cup in the cartridge case acts as a low-pressure chamber. A percussion primer is crimped into a center opening in the closing plug. Functioning: The weapon firing pin strikes the primer igniting the propelling charge. Gases from the burning propellant expand in the high-pressure chamber. The pressure ruptures the propellant cup and the gas pressure escapes through the vents into the low-pressure chamber.

The expanding gases propel the projectile through the launcher tube with a muzzle velocity of 76 mps and reaches a burst altitude of 550 feet at a quadrant elevation of 85°. The burning propellant also ignites the delay element in the base of the projectile. Within 4 t o 5 seconds after firing, the delay element ignites the ejection charge. The ejection charge ignites the star charges and blows the candle assembly out through the top of the projectile body. The individual stars burn for approximately 7 seconds during free fall and produce 55,000 candlepower.

M585 White Star Cluster U.S. Army photo 625x477, 60K, JPEG M651 Tactical CS Cartridge

Complete Round Type

CS

Classification Date

?

Unit Cost

?

Length

4.57 in (116.1 mm)

Weight


Body Material


Color

Gray projectile with red markings and red band

Filler

57 g CS-pyrotechnic mixture

Fuze

M581 point detonating

Weight

0.45 lb (0.205 kg) Case Components

Cartridge Case

?

Propellant

?

Primer

Percussion Performance

Maximum Range

1,312 ft (400 m)

Maximum Accurate Range 656 ft (200 m) Muzzle Velocity

250 fps (76 mps)

Arming Range

33 - 98 ft (10 - 30 m)

CS Burn Time

20 to 30 seconds

Area Coverage

144 yd² (120 m²)

Use: Though it is a multipurpose round, the M651 is most effective for riot control and in military operations on urbanized terrain (MOUT). This chemical round is used to drive the enemy from bunkers or enclosed positions in built-up areas. It produces a white cloud of CS gas on impact. Description: The M651 cartridge is similar in appearance to other 40mm cartridges but has a flat nose. Two ridges act as projectile r otating bands when the round is fired. The cartridge case contains a percussion primer and has six equally spaced notches located ar ound the cartridge case base. The 1/4 inch wide red band on the gray projectile indicates that the CS filling is a non-persistent-effect irritant agent. The round is filled with about 2 ounces (57 g) of CS pyrotechnic mix containing approximately 0.75 ounces (21 g) of CS. Effect: Maximum accuracy is obtained at ranges up to 219 yards (200 m). Area targets may be engaged up to 437 yards (400 m). This projectile can penetrate window glass or up to 3/4 inch (19 mm) thick pine at 656 feet (200 m) and still release CS. The projectiles will also function against other materials such as earth, gravel, brush, sandbags, and bamboo. Following impact, a cloud of CS is emitted for approximately 25 seconds. Area coverage: approximately 144 square yards (120 square meters). Two cartridges effectively placed will incapacitate 95% of unmasked personnel in an enclosure of 15 by 30 by 20 feet within 60 seconds after functioning.

Firing the M651 cartridge into water will increase the dud rate and decrease the amount of CS cloud disseminated. The M651 cartridges are not explosive rounds; however, a malfunctioning projectile may explode upon target impact.

M676 40mm Yellow Smoke Canopy Cartridge M680 40mm White Smoke Canopy Cartridge M682 40mm Red Smoke Canopy Cartridge

Complete Round Type

Smoke Canopy

Classification Date

?

Unit Cost

?

Length

5.212 in (132.4 mm)

Weight


Body Material


Color

Light green with black markings

Filler

Smoke composition. M676: 59 g yellow. M680: 59 g white. M682: 80 g red.

Fuze



M195 330 mg M9 M42 percussion

Performance Burst Height Muzzle Velocity Arming Range

300 ft (91 m) 250 fps (76 mps) N/A

Smoke Burn Time 90 seconds minimum Use: This cartridge is designed for accurately marking the position of a man or unit located beneath moderately thick foliage for aerial observation. The cartridge has the advantage of less weight and bulk and greater accuracy than comparable existing signals. Description: The cartridge is a fixed round of ammunition consisting of a projectile assembly and a cartridge case assembly.

The projectile is a hollow, one-piece aluminum body with a rotating band. A plastic ogive is snapped into an O-ring in the front opening of the projectile cavity. The color of the ogive denotes smoke color. The cavity contains a pyrotechnic ignition candle and an aluminum canister containing yellow smoke composition attached to a rotating "X" t ype parachute. A 2 second ignition delay element is crimped into the center of the metal delay carrier. The delay carrier is threaded into the projectile base. A cavity about the delay element contains an ejection charge pellet consisting of 1.2 grams of black powder. The igniter and smoke canister are seated above the ejection charge in the projectile cavity. The projectile assembly is press-fitted into an O-ring in the cartridge case opening. The case is a hollow aluminum bi-chambered cylinder with a metal closing plug crimped into the base of the cartridge case. The propellant cup is sealed in the bottom by the closing plug. A percussion primer is fitted into the center of the closing plug. The cup acts as a high-pressure chamber, and the cavity around the cup in the cartridge case acts as a low-pressure chamber. Functioning: The weapon firing pin strikes the primer igniting the propelling charge. Gases from the burning propellant expand in the high-pressure chamber. This pressure causes the propellant cup to rupture, forcing the gases to escape through the vent holes into the low-pressure chamber to propel the projectile through the launcher barrel with a muzzle velocity of 76 mps and reaches a burst altitude of 300 feet at a quadrant elevation of 85°. Concurrently, the propellant gases ignite a 2 second delay element in the base of the projectile.

The rotating band engages the rifling in the launcher barrel to impart a spin of 3,750 rpm to the projectile. Approximately two s econds after firing, the delay element ignites the eject ion charge. The ejection charge ejects the smoke canister and parachute assembly out the top of the projectile body and simultaneously ignites the smoke candle. The parachute deploys upon ejection. The smoke canister descends emitting a 90 second smoke signal and becomes entangled in the dense foliage by means of the "X" type parachute.

M713 40mm Red Smoke Ground Marker Cartridge M715 40mm Green Smoke Ground Marker Cartridge M716 40mm Yellow Smoke Ground Marker Cartridge

Complete Round

Smoke Ground Marker

Type

Classification Date ?

?

Unit Cost Length

3.91 in (99.3 mm)

Weight


Body Material

Aluminum

Color

Light green with black markings

Filler

75 g smoke composition

Fuze

M733 impact pyrotechnic Case Components


M118 330 mg M9 FED 100 percussion Performance

Maximum Range

1,312 ft (400 m)

Muzzle Velocity

250 fps (76 mps)

Arming Range

50 - 150 ft (15 - 45 m)

Smoke Burn Time

17 seconds minimum

Use: These rounds are not for screening. They are used for aerial identification and for marking the location of soldiers on the ground. The difference among the models is the color of the smoke. Description: The cartridges consist of a cartridge case, a projectile with pyrotechnic s moke payload, and a pyrotechnic impact fuze.

The projectiles utilize a one-piece aluminum body ogive and a steel base. The payload consists of a pyrotechnic smoke mixture pressed into t he body-ogive with a cylindrical cavity in the center. The fuze is cemented to the base of the projectile and protrudes into the cylindrical cavity of the smoke mixture. The fuze is designed to arm at a minimum of 15 meters and a maximum of 45 meters from the muzzle of the weapon. The cartridge case is a dual-chambered aluminum container housing a brass propellant cup. The propellant cup is held in the case by a crimped base plug which provides a pressure-type waterproof seal. The base plug houses a percussion primer. Functioning:

Upon firing the primer ignites the propelling charge. In turn, t he projectile is accelerated down the launcher barrel where a spin of 3,750 rpm is imparted by the barrel rifling. A muzzle velocity of approximately 250 fps is attained. In addition to launching the projectile, the propellant gases ignite the first fire mixture of the fuze in the base of the projectile. The first fire mixture ignites a high-temperature transfer mixture contained in the steel cup. The transfer mixture burns during the first 15 meters of projectile flight. When the projectile is between 15 a nd 45 meters from the launcher muzzle, heat transfer through the steel cup ignites the delay mixture. Upon impact, the delay casing breaks and the burning portion flies forward out of the fuze support, contacting and igniting the pyrotechnic smoke mixture. Ignition of the smoke mixture causes a buildup of pressure which dislodges the fuze support at the aft end of the projectile thus allowing smoke to be emitted at the aft end of the projectile. Projectile impact prior to the minimum arming distance (15 meters) results in a dud. Between 15 and 45 meters from the launcher muzzle, the fuze may or may not function on impact. In the event the fuze fails to function upon impact, the output mixture provided in the front end of the delay casing acts as a backup to the impact feature. When the flame reaches this point (8 to 10 seconds after launch) the output mixture flashes and ignites the smoke mixture.

M781 40mm Practice Cartridge

Complete Round Type

Practice

Classification Date 1978 Unit cost

$5 (Fiscal Year 2005), $7 (FY 2010)

Length

4.05 in (102.9 mm)

Weight


Body Material

Zinc or aluminum

Color

Blue with white markings

Filler

Orange dye

Fuze



M212 340 mg M9 Commercial 1-1/2 percussion Performance

Maximum Range

1,312 ft (400 m)

Muzzle Velocity

250 fps (76 mps)

Arming Range

N/A

Danger Radius

66 ft (20 m)

Use: The M781 cartridge is a fixed, practice type a mmunition. The M781 replaced the M407 practice cartridge. This item is Code A, approved for service use. This is a training unique item; not used in combat. Description: This cartridge is a fixed round of ammunition consisting of a metal projectile body with a rotating band and a cartridge case assembly.

A hollow plastic ogive is filled with a high visibility yellow-orange dye. The projectile assembly is attached to a cartridge case with an attached adhesive substance. The case is a hollow bi-chambered plastic cylinder. A .38 caliber blank cartridge is pressfitted into the base of the cartridge case and provides the gas pressure needed to propel the projectile through the launcher barrel. Functioning: The weapon firing pin strikes the .38 caliber blank cartridge primer igniting the propelling charge. The burning propelling charge generates sufficient pressure to r elease the expanding propellant gases through the vent hole into the low-pressure chamber. The rotating band around the projectile engages the rifling in the launcher tube imparting a spin of 3,600 rpm to the projectile.

The pressure created by the expanding propellant gases in the low-pressure chamber, forces the projectile through the tube with a velocity of 76 meters per second. Upon impact with the target, the frangible ogive ruptures and releases the dye causing a puff of yellow-orange smoke which simulates explosive impact.

M781 Practice U.S. Army photo 597x478, 48K, JPEG M992 40mm Infrared Illuminant Cartridge


IR Star Parachute February 96 $94 (Fiscal Year 2010)

Length

5.272 in (133.9 mm)

Weight


Body Material


Color

White with black markings, orange band

Filler

50 g Illumination composition

Fuze




Burst height Muzzle Velocity Arming Range

600 ft (183 m) 250 fps (76 mps) N/A

Maximum Visible Candlepower 350 Burn Time

30 seconds minimum

Use: The M992 infrared illuminant cartridge will enhance night visibility while using night vision devices. This item is Code A, approved for service use. Description: The cartridge is a fixed round of ammunition consisting of a projectile assembly and a cartridge case assembly.

The projectile has a one-piece, hollow aluminum body with a metal rotating band. A plastic ogive, embossed with a raised letter for night identification of payload, is snapped into an Oring in the front opening of the projectile cavity. The cavity contains a pyrotechnic flare candle assembly, and an integral ignition/ejection charge attached to a 20 inch dia meter parachute. The projectile has a 4 to 5 second delay ignition element crimped into the center opening of a metal delay carrier. The projectile is press-fitted into an O-ring in the front opening of the cartridge case. The case is a hollow bi-chambered cylinder with a metal closing plug crimped into the base of the cartridge case. The propellant cup is sealed on the bottom by the closing plug. The cup acts as a high-pressure chamber, and the cavity in the case surrounding the cup acts as a low-pressure chamber. A percussion primer is crimped into a center opening in the closing plug. Functioning: The weapon firing pin strikes the primer igniting the propelling charge. Gases from the burning propellant expand in the high-pressure chamber. This pressure r uptures the propellant cup, and the pressure escapes through the vent holes into the low-pressure chamber, propelling the projectile forward with the velocity required to reach the burst altitude. The burning propellant also ignites the 5 second delay element in the base of the projectile.

The rotating band engages the rifling in the launcher tube to impart a spin of 3,750 rpm to the projectile. At the end of the delay, the delay element ignites the ejection charge. The ejection charge ignites the candle and blows the candle assembly out t hrough the top of the projectile body. The attached parachute deploys upon ejection to lower the candle at 7 feet per second. The candle burns for approximately 40 seconds. The candle functions at an altitude of 500 to 700 feet when fired vertically.

M1006 40mm Non-Lethal (Sponge Grenade) Cartridge

Complete Round Type

Non-Lethal

Classification Date

April 1999

Unit Cost

$23 (2003)

Length

3.95 in (100.3 mm)

Weight


Ogive Material Ogive Color Body Material Body Color

Foam rubber Green High density plastic Black

Filler

None

Fuze

None

Weight

0.06 pounds (0.0285 kg)

Case Components Cartridge Case

M212

130 mg Winchester mix

Propellant

Percussion

Primer

Performance Engagement Range 33 - 164 ft (10 - 50 m) Muzzle Velocity Arming Range

265 ±20 fps (81 ±6 mps) N/A

Use: The M1006 is used to incapacitate personnel without penetrating the person's body. It is used for riot control, policing and peace keeping situations. This round is most effective against individually selected targets (point round). Do not skip fire this round! Round becomes unpredictable upon striking the ground. This item is Code A, approved for Service use. Description:

The cartridge is a fixed round of ammunition consisting of a projectile assembly and a cartridge case assembly. The projectile has a foam rubber nose and a high density plastic body. The projectile assembly is atta ched to the cartridge case by an adhesive. The cartridge case is a hollow bi-chambered plastic cylinder. Into the base of the cartridge case is pressed an aluminum insert which holds a brass 32 caliber case. The brass case holds the propellant and primer. Functioning: The weapon pin strikes the primer igniting the propelling charge. The burning propelling charge generates sufficient pressure t o release the expanding propellant gases t hrough the vent

hole into the low-pressure chamber. The rotating band around the projectile engages the rifling in the launcher tube imparting a spin of 3,600 rpm to the projectile. The pressure, created by the expanding gases in the low pressure chamber, forces the projectile through the tube with a velocity of 265 feet per second. Upon impact with an individual, force is generated to incapacitate without causing a fatality. Effect: Fatal injuries are possible at employment distances of less than 10 meters. Beyond 50 meters, the kinetic energy dissipates to the point where the round becomes ineffective.

M1029 40mm Crowd Dispersal Cartridge

Complete Round Type

Non-Lethal

Classification Date May 2001 Unit Cost

$17 (Fiscal Year 2008)

Length

4.8 in (121.9 mm)

Weight


Body Material

N/A

Color

White cap

Filler

48 black hard rubber 48-caliber balls

Fuze



? 0.58 g Percussion Performance

Maximum Range

328 ft (100 m)

Effective Range

50 - 100 ft (15 - 30 m)

Muzzle Velocity

375 ±25 fps (114 ±8 mps)

Arming Range

N/A

Use: The M1029 Crowd Dispersal Cartridge (CDC) is used to incapacitate personnel without any penetrations to the individual's body. It is used for riot control, policing, and peace keeping situations. This direct fire, low-hazard, non-shrapnel-producing, multiple ball projectile provides friendly forces the capability to conduct crowd control. The CDC uses non-lethal, blunt trauma to stop, confuse, disorient, and/or temporarily incapacitate personnel and increase standoff distance between friendly forces and the hostile crowd. Primarily designed as an area effect munition, the CDC can be used on individuals. Description: The CDC is an aluminum cartridge of similar proportions to standard 40mm illuminant cartridges, but with no separate cartridge case. A fiberboard sleeve and plastic cover contain the internal non-lethal payload which consists of 48 black hard rubber 48-caliber balls. Functioning: When the primer is struck by the firing pin, expanding gases from the propellant push against the gas seal. This causes the fiberboard sleeve to push the upper wad down the muzzle and expel the rubber balls. Effect: Fatal injuries are possible at employment distances of less than 10 m. Beyond 30 meters the kinetic energy dissipates until the rubber balls become ineffective.

Last updated: 25-FEB-2010: Major revision using data and art from TM 43-0001-28, TM 31310-243-10. Copyright ©2005-2010 Gary W. Cooke To the best of my knowledge all military data and images presented in these pages are UNCLASSIFIED, NON-SENSITIVE, and approved for public release.

40mm Low1

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