I highly recommend the Winchester WLP's s4s4u was talking about. They are more versatile as you can use them in magnum or standard large pistol loads which means it's easier to stock up and one less thing to keep straight. I will interchange primer brands but as long as your not starting with max loads your fine. I think I mentioned a study I read that showed pressure variations between the same loads with different brand primers but if you start out like your supposed too and work up you'll be good to go. Right now I'm working through a bunch of CCI LP's and LPM's but when I start buying primers again I'll go back to the Winchesters, I just wish they could do the same with rifle primers.

I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them. John Wayne-The Shootist