tcs58 Posted March 16, 2013 Share Posted March 16, 2013 The local gun store had some CCI 450 small rifle magnum primers i bought. Decent price and I was totally out. My normal load is 55 gr fmj atop 27.0 gr. Varget. Has anyone used the magnum primers in a 223 load for shooting in an AR? Link to comment Share on other sites More sharing options...
Steve RA Posted March 16, 2013 Share Posted March 16, 2013 Yes, unless you are at the upper end of your load, just load them up and shoot. If you are pushing the upper limits of the load you are using, back off a couple of tenths of a grain and chrono to see exactly where you are. Link to comment Share on other sites More sharing options...
G29SF Posted March 19, 2013 Share Posted March 19, 2013 I use CCI #41 primers exclusively for my AR loads. They use the same magnum priming mix as the CCI #450 magnum primers. #41 are designed for ARs and other semi-auto rifles. Their main spec us a harder primer cup, designed to minimize/eliminate slam fires. Sent from my RM-820_nam_att_100 using Board Express Link to comment Share on other sites More sharing options...
heffto Posted March 27, 2013 Share Posted March 27, 2013 I have a lot of small pistol primers that I would like to use in reloading my .223 ammo (I can't seem to find any small rifle primers). Is it ok to make such a substitution? Is it dangerous. Link to comment Share on other sites More sharing options...
G29SF Posted March 27, 2013 Share Posted March 27, 2013 I wouldn't use them in an semi/auto due to slam-fire potential, however in a bolt gun it should not be dangerous. Can't speak to effectiveness though. Sent from my RM-820_nam_att_100 using Board Express Link to comment Share on other sites More sharing options...
chuckd53 Posted March 28, 2013 Share Posted March 28, 2013 (edited) Ia anyone using the CCI #41 primers for 300 blackout? Due to the shortages of almost everything, all that I could find are #41 primers and 'lilgun powder. Anyone have a recipie using Hornady 110 gr V-Max? Edited March 28, 2013 by chuckd53 Link to comment Share on other sites More sharing options...
CarlRuetz1 Posted February 28 Share Posted February 28 I just worked up a load using cci 450 small magnum primers, R-P brass, 50gr. Vmax , 24.7 grains of H335. I shoot the best group ever with 1-9 twist, bol gun. My new coyote load. Link to comment Share on other sites More sharing options...
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