Everyone has a different way, 1 shot clean/ 3 shots clean / 5 shots clean, some don't even clean till after thier range session. Some people like to fire lap the barrel. I would only say, Don't over heat the barrel. I normally shoot 3 shot groups and clean, letting the barrel cool down between groups. How many rounds to break the barrel in is also contingent on the barrel quality. And then I shoot 5 shot groups to test accuracy level.