I shot a friends' fathers rifle a while ago. It was from WWII, I think it had 12 shots, and was loaded by putting all the bullets into a chamber and screwing a spring in behind them. It was semi auto. Anybody help me with figuring out the rifle? It was from a while ago, so sorry if I was too vague. I can't remember the caliber. I know we shot a couple .22s that day, but don't know if it was one. Thanks for any help.