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The M134 Minigun is an American 7.62×51mm NATO six-barrel rotary machine gun with a high rate of fire (2,000 to 6,000 rounds per minute). [2] It features a Gatling-style rotating barrel assembly with an external power source, normally an electric motor.
However, the Microgun's prominent feature of using 5.56 mm ammunition was also its downfall. For aircraft gunners, accuracy suffered at high speeds, and range, compared to the 7.62 mm Minigun, was limited. General Electric tried to refocus its efforts by making the Microgun an infantry weapon, but the Army showed no interest. [4]
The GAU-19/A is designed to accept standard NATO .50 caliber M9-linked ammunition. The rate of fire is selectable to be either 1,000 or 2,000 rounds per minute. The Humvee armament kit version fires at 1,300 rounds per minute.
Penetration 20mm at 25-degree impact and 100 meter range, [3] 6.3mm RHA at 0-degree impact and 1000-m range. [4] M56: HEI: 102 9 g HE (RDX/wax/Al) and 1.5 g incendiary 1030: Nose fuzed round, no tracer. Effective radius for causing casualties to exposed personnel is 2 meters with fragmentation hazard out to 20 meters.
The CIWS is designed to be the last line of defense against anti-ship missiles. Due to its design criteria, its effective range is very short relative to the range of modern ASMs, from 1 to 5 nautical miles (2 to 9 km). The gun mount moves at a very high speed and with great precision.
The M61 Vulcan is a hydraulically, electrically, or pneumatically driven, six-barrel, air-cooled, electrically fired Gatling-style rotary cannon which fires 20 mm × 102 mm (0.787 in × 4.016 in) rounds at an extremely high rate (typically 6,000 rounds per minute).
Dillon Aero manufactures the Air Force GAU-2B/A (Army M134) 7.62×51mm minigun, which is used primarily by 160th SOAR. The company completely redesigned the weapon and significantly improved its reliability while reducing its weight.
Name Manufacturer Image Cartridge Country Produced Type Agram 2000: Agram: 9×19mm Parabellum Croatia 1990-Present SMG American-180: Illinois Arms Company .22 Long Rifle