My choices are down to choosing .257 or .316 for groove dia,.......and will be taking everything that gnoahhh's fresh post on everlasting case design to heart.
.....hell, was pretty much there myself , as regarded small primer fitted cases.

GTC


Member, Clan of the Border Rats
-- “Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.”- Mark Twain