twister Posted May 11, 2013 Share Posted May 11, 2013 I was able to pick up 2 thousand magnum small pistol primers, and would like to know if there are any problems using them in 40cal.loads? Thanks for your help,Dave. Link to comment Share on other sites More sharing options...
ben b. Posted May 11, 2013 Share Posted May 11, 2013 No problem for me. It is safest to back off the powder charge a few tenths and test. I compared mag vs regular with a mid range charge and saw I think 10-20 fps difference. Link to comment Share on other sites More sharing options...
twister Posted May 11, 2013 Author Share Posted May 11, 2013 Thanks Ben, I've never used them before,so I wasn't sure. Link to comment Share on other sites More sharing options...
Speedemon45 Posted May 11, 2013 Share Posted May 11, 2013 Yep work up a new load for them like you would any other. I use them all the time and really can't tell much difference except for using a tenth less powder in a couple different loads. Link to comment Share on other sites More sharing options...
Jaxshooter Posted May 11, 2013 Share Posted May 11, 2013 I have used them with the same powder charge as standard spp. If you are loading some powder like Clays I would definately reduce the powder and chrono. Link to comment Share on other sites More sharing options...
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