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Old January 22, 2012, 07:45 PM   #2
243winxb
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Join Date: July 26, 2011
Posts: 1,051
Mixed headstamp may grow at different rates. You might get 2 firings before they start to reach the maximum of 1.760" I would load & shoot till too long. Only trim now if your going to crimp using standard dies. No crimp needed IMO. Are you sure the brass will chamber in your firearm?
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