As I consider furthering my long range marksmanship knowledge & skills, I am considering a GAU-8. They’re mounted on the A10 Warthog. As A10s will be taken out of service soon, I expect there may be a glut of GAU-8s on the market and the price will come down. The GAU-8 uses depleted uranium 30×173 mm rounds. Although it can fire up to 4,200 rpm, it has been changed to a fixed rate of 3,900 rpm. That’s 3,900 rounds per minute. I’m just wondering; does anybody know what one round costs? Are they being horded as well? Who has them in stock? Would I be able to get this with a FFL3 license? Or should I stick with a bolt action?