Forrest R, thanks for the information. I just done cleaning my SP101, last night and it had a bunch of lead at the forcing cone. I had an old box of 158 gr LRN, that I figured I'd try out. Had build up after only 50 rounds and they had horrible accuracy. Guess I need to pull one of the remaining ones I threw in my scrap lead bucket to measure the sizing. I wasn't shooting too hot either, only 4.0grs of W231.

Anyone point in the right direction to find some Chore Boy?