Just picked up a nother mod. 60 the other day cleaned it up and took it out to see how it would perform first shot was ftf next 3 went bang next one ftf removed the round found firing pin to be hitting shell but but not firing.i am shooting the cci mini mags and in my other mod 60 they go off every time. i dont think its a shell issue ??? put missfires back in an they went off,Just wondering if any one here may have had this issue with there mod 60s forgot this is a older model 1973 may just be getting wore out. :-\thanks in advance dch.