[rktman]

Check out the rifling in the barrels. Puttin’ a great spin on the 30mm’s all the way round.

[Paladin2]

LOL, Macro grooving.

[Hulka]

30mm rounds exit the barrel at 3,400-3,600 FPS, at 112,600 RPM, and a TRAINING round can penetrate an inch and a half of armor at 2,000’. . .the range a “normal” 20mm AP round uses. The A-10 AP round can puncture an inch and a half of armor at 8,000’.

Pull the trigger for less than a second and 10 rounds per barrel, per second are fired. Keep the trigger down more than a second and you end up melting the barrel.

Pull the trigger and the jolt of the gun shakes the beejesus out of you, can’t see clearly due to the vibration, and the shoulder inertial locks lock-up due to a moment of rapid deceleration.

(Former Hog Driver)