i recently resized some ppu brass that had issues with the extractor groove in front of the case rim , which resulted in the cases not fitting in the shell holder correctly and as a result the cases are FLS back too far . seating bullets long into contacting the lands and using a starting load of the fastest burning powder listed to fireform is a solution ? i covered this problem of the extractor groove in another post
the cases are 7x57 and the fastest listed powder is BM2 . thought i'd pose this question of some of the knowledgeable people on here to see if i'm on the right track . safety first hey ? cheers





