What powder for the 450?Busy morning. Loaded up some test 325gr 450 Bushmaster rounds, then building up my stash of 10mm, was able to finish about 100 of them.
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What projectile?Loaded up 25 rounds of Lake City brass 308 with IMR 4064 for a ladder test. 41.8gr,42.2,42.5,42.8,43.1 5 each. Coal 2.82” +/- .002”