A few springs ago I watched them shoot off a m134 mini at knob creek. When they do a live range it only last for 10-15 minutes. When they ceased firing that one gun by itself had emptyed two belt cans. If I had to guess that one mini fired off close to 10000 rounds by itself, not to count the other 30 mounted mg's spread out across the line and pkms, 60's, 249's, ak's and auto glocks. Its crazy how much people pay to fire off them browning .50's, My bil asked how much to shoot one and if I recall right it was 100 per 20 rounds. Heres a few picks from the springs show, My BIL is in the first picture. It cost 50 bucks for one mag of 7.62x39 and boy did it go quick. Or if your loaded you could just buy your own full-auto.