IIRC, the Lee Web page has up to date the listing about which primers are Okay to employ. They now seem to single out FEDERAL particularly: For an illustration of why, load a Reside spherical within your AR from the mag, and have it or transfer it close to to https://federal-primers-ammunitio67901.look4blog.com/70480047/the-2-minute-rule-for-federal-match-ar-primers