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GAU-8/A Avenger 30mm Gatling Cannon

The GAU-8/A Avenger, mounted only on the A-10 attack jet, is a 30mm, 7 barrel gattling gun used primarily in the air to ground role as a soft target killer and tank buster. The gun fires a mix of both high explosive incendiary (HEI) and armored piercing incendiary (API) ammunition.
GAU-8/A Avenger 30mm Gatling Cannon

Characteristics

Dimensions
Bore diameter: 30 millimeters 1.18 inches
Barrel length: 229.87 centimeters 90.5 inches
Overall length: 605.79 centimeters 238.5 inches
Weight
Weight (cannon): 281.23 kilograms 620 pounds
Weight (complete weapon): 1 827.53 kilograms 4 029 pounds
Features
Caliber: 30×173 millimeters
Rate of fire (one engine): 2 100 rounds per minute
Rate of fire (two engines): 4 200 rounds per minute
Recoil force: 40 000 Newtons 9 000 pounds
Muzzle velocity (API ammunition): 987.55 meters per second 3 240 feet per second
Muzzle velocity (HEI ammunition): 1 036 - 1 052 meters per second 3 400-3 450 feet per second
Range: 1 223 - 1 609 meters 0.79-1 mile
Magazine capacity: 1 174 rounds
Feed: Left-hand linkless
Accuracy: 5mil, 80 percent (80% of rounds fired at 4 000 feet ~1 220 meters hit within a 20 foot ~6.1 meter radius)
Number of barrels: 7