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I am considering ordering a 45acp barrel and bolt for the AR. I have a choice of a 1/16 twist barrel and 1/10 twist barrel. I would normally run 180gr to 230gr cast, plated and fmj projectiles but would like the option of sizing down some cast .458 bullets to run some heavy for caliber loads occasionally. What is the upper limit of bullet weight for the 1/16 twist? If I go with the 1/10 twist will that cause any problems for lighter 45cal cast/plated bullets.