title says ot all. Used a Mansen go gage to set my headspace on my new barrel and firing pin would not even strike the primer. Reset with a piece of factory Hornady V max ammo and everything works fine. Hornady ammo seemed to be the tightest ammo, new unfired sized and primed Remington cases were a bit tighter but could be chambered w/o force, go gage would not even allow the bolt to close. Any ideas on why?