I screwed up and bought a case of magnum primers the other day. What is the difference, and is it possible to use them if I cut back the powder charge? As they can't be returned. I really don't wanna waste them either. Thanks again for the help!

Start with starting loads and slower powders they will be fine.

That's what I figured, but wanted to hear it from you guys. Thanks for the help!

quote:

Originally posted by dpcd:
Start with starting loads and slower powders they will be fine.

+1

Ball powder and starting loads will love the magnum primers. Primer Mysteries and Misconceptions link

Cut one grain from book max once you have worked up a load...Starting from scratch regardless of primers, start two grains below book max and work up..For a beginner shoot starting loads for awhile then go up as you learn the process of pressure indicators and working to max loads...100 FPS makes no difference to any animal shot.