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According to the U.S. Army Field Manual FM 3-22.31 40-MM Grenade Launcher, M203, [8] there are eight different rounds for the M203: 40 mm ammunition line drawings An M16A2 rifle equipped with an M203 grenade launcher lies in the grass near some of the types of 40 mm ammunition available for use with the M203. The cartridges are, from left to ...
Box full of 40×53 mm high-velocity grenades A 40×46 mm low-velocity training round being fired from an M203 grenade launcher. This is a general collection of the world's many types of ammunition for grenade launchers in 40 mm (1.57 in) caliber. Several countries have developed or adopted grenade launchers in 40 mm caliber. [1]
The MK281 is a new type of 40 mm grenade ammunition that has been accepted for use into the United States Marine Corps and the United States Army. The Rheinmetall MK281 Mod 0 and Mod 1 40×53 mm practice cartridges are precision, high-velocity training and practice cartridges.
The 40 mm ammunition used (40×53 mm) is not interchangeable with that used in the M203 (40×46 mm). The M203 ammunition develops a lower chamber pressure, and resultant lower muzzle velocity and range, compared to ammunition loaded for the Mk 19. The Mk 19 fires from an open bolt. The rounds are mechanically fed onto the bolt face with the ...
The MEI Mercury is a family of medium-range low-impulse 40mm grenade (40×46mmSR) developed by Martin Electronics, Inc. (MEI) that can reach out to 800 meters. The rounds are a fixed type ammunition designed to be fired from a 40 mm Grenade Launcher such as the M79, M203, M320 (attached to the M16 rifle or M4 carbine), or Milkor MK-1.
The M576 is a US Army designation for a 2.646 in (67.2 mm) long and 0.254 lb (0.12 kg) heavy US 40mm grenade buckshot load used in the M79, M203, M320, and M32 MGL grenade launchers. [1] It is olive drab with black markings.
Many different ammunition types were produced for the M79 (and subsequently for the M203). Outside of the smoke and illumination rounds three main types emerge: explosive, close-range, and non-lethal crowd control. The break-open action of the M79 allows it to use longer rounds that the standard M203 cannot use without some difficulty.
After the Vietnam War the 105mm tank gun M68 was also provided APER-T ammunition M494. APERS-T rounds in 40×46 mm were also available for the M79, M203, and M320 grenade launchers. Subsequently, it was reported that the USSR had developed similar rounds for 122 mm and 152 mm artillery for use in indirect fire.