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Old January 10, 2013, 10:57 PM   #10
serf 'rett
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Join Date: June 25, 2009
Location: Stuttgart
Posts: 1,383
The only way I can conceive of the OAL increasing after the crimp die is if the round is being significantly resized. My concern is if the soft lead is being compressed by the FC die, while the brass springs back. Are the bullets tight in the brass? 9mm should not need a roll crimp, just remove the case mouth expansion.
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Last edited by serf 'rett; January 11, 2013 at 12:27 PM.
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