07-28-2020, 04:37 AM
Fireforming would not be too big of a problem. What I would do first is anneal the necks then, run it through a 6.5 Grendel die to open the neck up followed by sizing it in a 6mmARC die to set a false shoulder and set headspace. Some lead bullets with a light (10gr) load of Unique or some cheapy 6mm jacketed bullets should take care of blowing oout the shoulder. Yes, I understand that the case will be a littlet short but, should retain more than enough neck tension to retain the bullet and the ONLY problem would be if you wanted to crimp a bullet in place.
I could agree with you, but then we would both be wrong...