Stags are reportedly C-prod but I cant confirm that.
PRI is about the best right now for reloaders. D&H is supposed to be coming out with a 6.8 mag I would keep an eye out over at Bravo company. They will sell through them. You could hit up the EE on ARF and see if you could find used one's. Barretts are the best all around IMHO but hinders the reloaders.