I have a 527 American in .204 ruger and it shots great. I have about 500 rounds through it in 4 months and it still has great accuracy. I only cleanit every 50 to 100 rounds. I knwo i should clean it around 20 to 40 but thats what i shoot on the weekends. It never jammed or gave me any problems even after 100 rounds. I would recomend one to anyone who is thinking about getting one.