## Answer

###### Wiki User

###### 04/25/2009

The Kalishnakov Assault Rifle, also known as the AK-74, uses a 5.45 mm round. Unless my standard to metric conversion factors are wrong, a 40 mm is equal to 1.575 inches, which is HUGE. The main weapon on an A-10 Warthog is a 30mm gatlin gun, just for a bit of perspective.

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