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Posted: 8/22/2008 10:10:32 AM EDT
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Getting a batch of new Winchester brass prep'd. Have full lenght sized, primer pocket uniformed, flash hole deburred, and chamfered the necks. Noticed that the neck wall thickness varies by at least .001 to .0015 making the ID and OD noticably non-concentric. It looks like turning the OD will even out the wall thickness - so far - so good. But I suspect that the entire neck is not concentric with the case body. Any ideas on how to proceed gratefully accepted. Thanks for your time, OFG |
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The technique I use. Size in a full sizeing die, or both a body die and then neck die of good quality. This should center the neck on the case body. Next take the same expander that is used in the neck turning tool, and put it in your press in a special die. This will push all the inperfections to the outside, and make a perfect fit on the expander for the neck turning operation. Finally, I set the neck turner up to just lightly remove material, and not 360 degrees around, or you have gotten too carried away as you are now also trimming the thin side. I agree with the above poster, that if I was reading 0.001" I would not bother. 0.002" or more and I probably would. |
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