01-22-2014, 02:01 AM
dmsims21 Wrote:To me, LongRanger solved/found the problem. Running the polishing bullets shows that his throat probably had a rough surface. There could be a burr in there or bad tool marks. His bullets must have been stopping on the imperfections and not the lands.
I don't think fire lapping could erode the lands that far.
It can and does, with those Tubbs sandpaper bullets. I moved the throat on one of my rifles a full .010" while using the entire series of those.