Postscript

Finally, the US Army has selected Alliant Techsystems to develop a future infantry rifle called the Objective Individual Combat Weapon (OICW).

This is planned to combine 5.56mm and 20mm weapons in a gun no heavier than the current 5.56mm M 16 rifle with M203 grenade launcher. By means of extremely sophisticated but highly automated sighting and computing systems, the low-velocity, low-recoil 20mm ammunition can be set to air-burst over a target at a range of up to 1,000 metres, although impact and delay modes are also available. The effect is a claimed 500% improvement in effectiveness over the M16 at 300m. Not surprisingly, the concept has already prompted the development of a fully automatic light cannon, the 25mm Objective Crew Served Weapon (OCSW).

Cart ridges used in sniper rifles (from left to right): .45" pistol round used in De Lisle carbine

(11.5 x 23), .458 x I'A" silent sniper (11.5 x 38B), . 458" Whisper (11.5 X 44B), .500" Whisper (12.7 X 57B), .50" Browning (12.7 X 99), . 338" Lapua (8.58 X 71), .300" Winchester Magnum (7.62 X 67B), 7.62mm NATO (7.62 X 51)

M60 Machine Gun Disassembly338 Lapua Magnum Wounds
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