I've shot off about 200 of them so far. I like them and have not had any ignition problems with them. Although, I do not shoot pellets. I have heard some of the pellet shooters are having problems with them. Since my rifles were never a crud ring problem rifle, I really do not have the need to pay the extra money for them and think I will just go back to the Winchester W209. I will not ever shoot the Winchester WML209's again.