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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.
The GAU-12 is about the same size as the 20 mm M61. GE has also developed the GAU-13/A, a four-barreled weapon using GAU-8/A components, which has been tested in podded form as the GPU-5/A. The Avenger also forms the basis for the Dutch-developed Goalkeeper CIWS naval air-defense gun. No current or contemplated aircraft other than the A-10 ...
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).
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]
Including the same 20 mm M61A1 Gatling gun, the unit is likewise capable of firing 4,500 20 mm rounds per minute. [ 6 ] [ 35 ] In 2008, there were more than 20 C-RAM systems protecting bases in the U.S. Central Command area of operations.
Sample 5-shot group measuring about 7 mm (0.28 in) at 91 m (100 yd), which corresponds to an angular size of about 0.08 mrad (0.26 moa). Same rifle and load, 25 shots at 91 m (100 yd). Note that the group size is about double, measuring about 15 mm (0.59 in) at 91 m (100 yd), which corresponds to an angular size of about 0.15 mrad (0.51 moa ).
Maintaining velocity is important for accurate long-range shots because dropping from supersonic to transonic speeds disturbs the flight of the bullet and adversely affects accuracy. The standard M80 ball round weighs 147 gr and from an M14 rifle and M60 machine gun has a muzzle velocity 200 ft/s (61 m/s) faster than the M118LR 175 gr sniping ...
The M249 SAW combines the rate of fire of a machine gun with the accuracy and portability of an assault rifle. The M249 SAW is gas operated and air-cooled. It features a quick-change barrel (enabling the operator to rapidly replace an overheated or obstructed barrel) and a folding bipod attached to the front of the weapon (an M192 LGM tripod is ...