i recall C.E. Harris' writings about PP bullets when he was doing articles for the NRA. seems lyman cut some special 30 cal. pp moulds. the point i remember was that the mould cast out about 0.008 - 0.01 under groove diameter and two wraps of the cotton rag paper that was being used took the CB up to groove diameter or so.
My interest for this post is for the 358 Win and/or the 35 Whelen. obviously Lyman never cut a PP mould for this caliber, but..... i was thinking (i know, i know) that if someone had a 348 Win mould, that might be a perfect size to pp up to 35 caliber....
has anyone done this before? if so, details please. I'm curious how it turned out.
of course comments on the feasibility of this experiment even by folks who've never done it is welcome too
thanks,
Brian