Hello all - I'm shooting a 43 Spanish Reformato Rolling Block, and it's loaded from 900 to 1,000 FPS. My Question, is there any advantage to using PP for these light loads vs just soft lead lubed bullets? I realize the PP'd route will require a new mold for a smaller size bullet - the barrel slugs about .454" with a throat at .470" - the throat measurement is taken from a chamber cast - I think I want to do a pound cast - beleive it will be better. The throat is pretty short from end of brass to start of rifling in barrel.
Anyway - I ramble too much - is there an advantage to PP for light loads?
Thanks to all for any info or guidance,
Ken H>