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Rifles, Reloading, Optics, Equipment
Reloading
What am I doing wrong with sizing brass?
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<blockquote data-quote="P7M13" data-source="post: 1982922" data-attributes="member: 94154"><p>I'd bet a beer it isn't your neck diameter.</p><p>I only use a case gage for my semi-autos. Chamber test on my bolt guns.</p><p></p><p>I have experienced the same.</p><p>First instance was LC brass that was "softer". Dimensionally the same, seat a bullet and the body would expand a few thou at one of the shoulder junctions, or fatten at the case head.</p><p>Next was interference by the seater die. If my case was 1 thou too long, it would produce a shoulder bulge. </p><p>Only way to tell is to completely dimension a bunch of cases, after sizing and again after seating.</p></blockquote><p></p>
[QUOTE="P7M13, post: 1982922, member: 94154"] I'd bet a beer it isn't your neck diameter. I only use a case gage for my semi-autos. Chamber test on my bolt guns. I have experienced the same. First instance was LC brass that was "softer". Dimensionally the same, seat a bullet and the body would expand a few thou at one of the shoulder junctions, or fatten at the case head. Next was interference by the seater die. If my case was 1 thou too long, it would produce a shoulder bulge. Only way to tell is to completely dimension a bunch of cases, after sizing and again after seating. [/QUOTE]
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What am I doing wrong with sizing brass?
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