IIRC, the Lee website has up to date the list about which primers are ok to use. They now appear to single out FEDERAL specially: I had been checking out the cabela's web page, one review claimed you could not use federals from the Lee auto primers. WHat I have https://winchestersmallpistolprim59614.tblogz.com/the-smart-trick-of-federal-large-pistol-primers-no-150-that-no-one-is-discussing-45751568