CRNA
Well-Known Member
Ok, so I fired some rounds through my new gun. I will reload when I have probably fifty or so to load at a time. I have been very interested in reading about bumping the case shoulder to fit my gun's particular chamber. I thought I would give it a try and see if I could feel the "crush fit" that so many have talked about, however I failed. Is it possible that the virgin brass that I loaded and shot has not "grown" or stretched enough? I took the brass (now it is once fired), chambered it in my gun taking note of how the bolt closed. I felt no resistance increase when compared to an empty chamber. I then lubed and sized the brass with the Forster BR full-length sizing die backed out one full turn. Chambered the brass again, and as before, no increased bolt stiffness. I repeated this procedure turning the sizing die down about an 1/8th of a turn each time until the die was touching the shellholder in the end. At no point did I notice any increase in bolt stiffness. Have the cases not stretched enough? Or have I likely went past the point of crush fit with turning the die in such large increments? Just wondering if during an 1/8th inch turn I went from just barely sizing the neck to over-bumping the shoulder. I look forward to the input. Thanks guys.