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Headspace

Posted by Ken Smith on Monday, 19 March 2012, at 12:27 p.m.

Gentlemen, I went out and shot my '84 the other day. When I went to decap the cases I noticed some flattened primers. I know that flattened primers are an indication of some sort of problem. I wanted to get some of you fellows opinions on this condition for these particular arms. Does anyone know how headspacing was gauged at the armory, and how to check it today? I suspect cases might be the problem, but am not completely knowledgeable of the headspacing science of firearms. Can anyone tell me what the absolute minimum case length would be before discarding? Examination revealed no puncturing of the primers, and the firing pin marks appeared normal. I have a package of new Winchester brass and measured some of those. They measured from 2.1" on the money to the 2.09 ranges. Any ideas are greatly appreciated. Thanks in advance. Regards, Ken


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