Read Below Before Watching attached clip:
This video was taken from inside the cockpit of an A-10 by the pilot. It was a night view. What you see is from 9700 feet away (almost two miles). Four insurgents are walking along a street with no clue that someone is watching them...from almost 2 miles away. The A-10 fired a 30 mm cannon WITHOUT injuring the dog nearby who escaped unharmed. You can see the gun camera shake a bit as the pilot fires; then count about 4 seconds for the rounds to travel 2 miles. Every tenth round is a tracer, so the bullets you actually see are every tenth; they are getting hit with hundreds of rounds, but the dog is unscathed. Muzzle velocity on the 30mm cannon is 2430 feet per second. The result is that these four guys won't be terrorizing anybody anymore! The dog, in the upper right, safely gets out of the way.