Thread: crimping a 308
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Old May 4, 2011, 03:25 PM   #2
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Join Date: April 15, 2009
Location: Wyoming
Posts: 1,717
My rule of thumb is... don't do it unless there is a specific reason to do otherwise. All my rifles are bolt action and there is no reason at all to crimp any of them. I hear some of the guys say that it's good to put a small taper crimp on them for semi auto rifles but I don't know anything about those. As long as my brass mouths are about 0.003" smaller than the bullet before I seat them, that is plenty of tension to keep the bullet in place.
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