next time you BBQ just drop the shell in the....no,no,no,no just kidding. If not using a rifle, then drill a hole in a 2x4 just large enough for the round to fit. Drill ALL the way through the board. Do not block the open end of the shell. Be positive there is no powder in the shell. Get your redneck neighbor to hit the primer with a nail and hammer. Seriously man, what are you doing? Just get a spent round and remove primer the safe way. If you need a spent round I'll send you one.