And the US Army AH-64 Apache and Russian Ka-52 Alligator are generally considered to be the two best military attack helicopters in the world (with the Russian Mi-28N arguably in a close third).

The gun itself is a 30-mm single-barrel electrically-driven autocannon. The Apache can store up to 1,200 rounds for the M230 gun, using an ammo storage device called the 12-PAK. The 30x133 mm ...