Mine has been very very good for my a-5 i got the .691 model and i have found its favorite paint is visible impact (from walmart yeah i know!) but other than that with decent paint ive never even broke a ball, but i broke some dimpled recons in my barrel at a game last week and my barrel would just not clean out , AT ALL i had to go and get hot water n pour it through every round, got me very POed but go and buy it, personally i recomand a palmers brass to save some $$$ but its all personal preferance.