My P32 would happily digest anything I fed it. So far the only ammo I bought for my 3AT has been RWS ball ammo, mainly because I found it on sale. Today a friend brought over his LCP and some S&B ammo. His LCP ran fine on the S&B, my 3AT jammed every third round. Failure to eject was the most common problem. Put the RWS back in and had no more problems. I know ammo preferences are not that unusual, I was just surprised after my P32 showed no preference.