My sons Ruger 10/22 Missfires (gives a soft hit) out of 10 it will misfire on two or three, CCI Mini mags (solid and hollow points) Remington Golden hollow points and Federals all hit soft. The only bullets that works without any problems are CCI Blazers. I've had lots of Ruger 10/22's over the years and never had this happen with any one that I had. Can anybody give me any advice on how to fix it. It's a new gun and I always clean it after every time we shoot it. I have read the other threds on this subject and I think that maybe that I might need to re-stake it or pin it to limit the pin travel. Any comments?