Russia's A-10: The Sukhoi Su-25

Here is a shot of a Russian mechanic loading the Su-25's 30mm GAU-8 cannon, which can fire 2,500 to 3,000 rounds a minute.The A-10 Warthog is armed with a similar 30 mm GAU-8 Avenger rotary cannon, Popular Mechanics said, which can fire 3,900 round per minute.