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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 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]
The M60 was designed for mass production, like the MG 42 it was based on. While the M1919 required much machining for its large, recoil-operated internal mechanisms, the M60's stamped sheet receiver had a gas-operated, carrier-cammed bolt mechanism; the same type of mechanism was used on the Lewis machine gun. [17]
The M134 Minigun fires 7.62mm ammunition at 3,000 to 4,000 rpm. The M3P Machine Gun, an M2 variant with a higher rate of fire mounted on the Avenger Humvee. The GAU-19, a rotary gun that fires .50 caliber ammunition. Mounted on Humvees and helicopters. The M230 Autocannon fires 30×113mm ammunition at 625 rounds per minute.
The time of flight of its projectile to 4,000 feet (1,200 m) is 30 percent less than that of an M61 round; the GAU-8/A projectile decelerates much less after leaving the barrel, and it drops a negligible amount, about 10 feet (3.0 m) over the distance. [17]
Minigun M134-D. MG6 United States: Rotary Machine gun: 7.62×51mm NATO [40] Used on H145M helicopters, vehicles smaller boats, and can be used by infantry troops on tripods. [41] M2HB Browning. MG50-1 United States Belgium: Heavy machine gun: 12.7×99mm NATO [42] Standard heavy machine gun for the German Army (Bundeswehr designation ...
Unit cost: 5 × Block 1B £8.56M each to UK; 9 × Block 1B US$13.66M each for SK; 13 × Mk 15 Block 1B Baseline 2 for TW, total cost: US$416M with 260,000 × Mk 244 Mod 0 armor-piercing bullet. 8 sets are for upgrading the current Block 0 to MK15 Phalanx Block 1B Baseline 2. [1] Produced: 1978 [2] Variants: 3: Specifications (early models) Mass