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Old October 14, 2012, 02:17 PM   #17
Senior Member
Join Date: August 1, 2010
Location: Tampa Bay
Posts: 4,387
What others have said- FL size...with correct shoulder bump for your chamber.
If you neck size, you still have to FL size occasionally, anyway-as the case will expand and get progressively harder to chamber.
I've never had an issue with brass life.

Get the Hornady LNL headpsace gauge kit, inexpensive and provides comparative measurements between your fireformed brass and that which comes out of your sizing die.

You can get more precise with FL sizing by getting precision bushing dies to get precisely .002 neck tension, which is where I'm headed for our long-range shooting loads:
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