Greetings, Mr_P7M8! I have the older PSP version of your gun. It's handled both standard and +P rounds with ease as well as some hot handloads. Do avoid lead bullets so that you don't have a chore cleaning the gas piston and its chamber. I've heard, but not experienced it firsthand, that plated bullets will leave fragments there, too. Mine's worked fine with practically any round you care to name, so I'd go with what groups and is cheapest. Best.