Unfortunately the shoulder on 30-06 and 35 Whelen is smaller than the 400. The brass quality cartridge makes is cylindrical basic brass and must be formed in my dies and then fire formed. Any cylindrical basic 30-06 family cases would work. Quality Cartridge has made the 400 brass fairly recently and I thought a WTB ad for it would be the best chance for getting what I need.
I don’t plan to leave the country with my rifle. I don’t even really care about the headstamp, but I do care about the shoulder diameter being .458” to avoid headspace issues
