I think I have been using too much PC. At first I was really happy that it was sticking so well. On some of my .45-70 boolits, I would have a built up at the base and I couldn’t get it through the sizer. Also when you size a boolit, the olive normally doesn’t get sized down. I have had some problems with boolits not wanting to chamber because of this. Amount of PC on the boolit before baking needs to be considered.