I hope so, I have 5K of them + 4K large pistol + 3K large rifle. I was going to buy some small pistol, but I scored on 5K of CCI 500's. I bought the Wolf primers, when I could not get anything else. So far, I have not run into a problem. I have not shot enough of them to know about how much the small rifle primers are going to effect my accuracy. I am working on a 22 BR right now, but have only shot beginning loads so far, to zero in the scope and to make sure nothing is going to be bad. No misfires or upside down anvils or other "bad" things so far. I have a good feeling about them, but the proof is in the shooting.