I use a 12 guage. If a guy wants to use a 10, let him use it. I don't care what someone uses as long as it's legal. But for all the skybusters taking 100 yard shots, you should be kicked in the nuts and have your license taking away for a few years. Skybusting waterfowl is as bad as taking an unethical shot on a 6 point bull or a trophy buck! You just shouldn't do it. If you see someone else doing it you should let them know how unethical it is!!