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Old March 23, 2013, 01:31 PM   #2
Join Date: January 18, 2010
Posts: 61
You have put the casings through the full length resizing die first I assume?You are sure the bullets are .224? You should not crimp them if there is no canalure cut in them. That is a light bullet for the AR unless you have a slow twist rate. A fast twist is 7:1 and a slow is 12:1. Should be stamp on your AR. I have a 8:1 and don't use bullets much lighter than 55gr. Light bullets and a fast rate kind a fly apart or you loose accuracy.
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