I’ve been trying to get my cast boolits to work in my Polymer 80. The original barrel was of unknown origin, came with the kit I bought. I sent it to Dougguy to rework the throat and wasn’t happy with accuracy after that. Decided to try a new barrel from Lonewolf. My reloads would not plunk in the chamber, which I narrowed down to my Lee resizing die not properly sizing brass. New RCBS die took care of that, so I went to try it out.
Edit: Pic is 90 deg off, right side is bottom target.
Shot at 15 yards. Bottom target is factory ammo, top is my reloads with cast boolits. Mold is from Accurate, 130gr. 4.7gr Unique. I pulled a bullet and found slight swaging down to .356, which should be ok since my barrel slugged at .3555. Not sure where to go from here.