Im just a beginner at reloading-but have read extensively and have reloaded a few hundred rounds of 357 mag. with a lee progressive 1000. Up until recently, I have used cci small pistol mag primers, but as you know primers are on the endangered species list. I was able to score some federal primers of the same type but I see that lee doesnt recommend the use of these. No big deal, I figured I would just buy a auto-prime and do them by hand but, again I read that lee does not want you to use federal even with the auto-prime. Obviously safety is a concern, but has anyone had good-bad experience with this set-up? Other ideas? thanks, wrightway.