The General Electric M61A1 (Vulcan) is an American 20 mm calibre six-barrel Gatling gun mounted on the M163 AFV, and fitted to various aircraft. It has a variable rate of fire up to 6600 rounds per minute and a muzzle velocity of 1036 meters-per-second and fires APTammunition with armour penetration of 45 mm at 500 meters and 31 mm at 1000 meters. Research M61A1
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Abbreviations
Warfare
Research M61A1
