Joe,,,talk to Kiff ,he is the best in the industry...,,he can make you a reamer that works with the modern day Redding Dies(you don't need the exotic $$$ homemade dies if you get the right reamer) there is more to it than just getin the front end of the ctg right,,,the back end at the .200 line and the shoulder dia, and body taper are of paramount importance,,,(mine is type -S..full length) and made to 30-06 length,,,~,2.5"...316ND,,,.190-.220 FB depending on bullet,,,,he is an expert ,,tell him your bullet and he will fix you up. Neck down from 30-06,,,make false shoulder ,,,just enuff tension to have to palm the bolt shut,,,FF with Universal Clays(55% of case full) and 1/4 sq of TP..NO BULLET !!!....( I use .308 Wilson bushing with WW brass and .310 with Lapua,,,Redding bushings are always marked wrong,,usually they are .001-002" tighter than marked),,,Roger