this seems the most appropriate place to post this. I am breaking in a barrel and doing load development on a belted mag and i am getting some primers that back out flush or just past (.001) this is new or 1x fired brass. I also loaded a few in WRA brass from the 1940's and they backed out .005-.007 without more detail does anyone have insight? thank you. I am a new to this great site so please indulge me if this is a redundant question