I\’ve just gotten back into reloading after a 10 year hiatus, and I\’m having much the same issues with RMR 115 gr FMJ-RN. I\’m seeing OAL\’s on charts from 1.10 to 1.30. I tried a recommended 1.120, and it turned my Wife\’s Taurus G3c into a hard jam-o-matic. I\’ve been told if it plinks it\’s good. I dropped Blazer commercial ammo into a chamber, and they didn\’t pass the plink test. I\’ve loaded to the same OAL as the same size and weight Blazers. Mine were no go. The blazers were shot fine. I\’m just doing plinking rounds for practice and fun, but I would like some reasonable accuracy (10 rds in a paper plate at 10 yards for SD training). How wide a variable is ok? if the recommended OAL is 1.130 and I seat to 1.135 or 1.128 is that ok? Winchester SPP and New Winchester Brass. RMR 115gr FMJ-RN. 5.5 gr Unique. Any suggestions?
SE