I have a Country Gunsmith bench mounted large primer swager that I got in 92. It works excellently designed to give the tiniest bevel to get your primers started. Every round is moved to the appropriate primer pocket uniformer on my RCBS case prep machine. I have been using this system since 92 and haven't had a loose or gas escaped primer yet. I use it on 30-06, 7.62x51, 8mm, 7.65 Arg, 303, 45acp and any other boxer primed surplus brass I can find.

All tyranny needs to gain a foothold is for people of good conscience to remain silent.
-Thomas Jefferson