mine has been flawless (500 rounds in), but just realized that all the primers on my spent casings are "cratered". Didn't think much of it at first, thought it was normal for .223, but then did some research and realized this isn't a good thing. Now I'm stuck on what I should do, continue to shoot it? or try and get it fixed somehow so my primers don't crater? Any ideas? BTW all ammo has been factory (Winchester, Remington, etc...) and all have cratered primers, no pierced ones though......It has been doing this since I bought it new, no problems, functions 100%