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Rifles, Reloading, Optics, Equipment
Reloading
Sinclair Concentricity Gauge
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<blockquote data-quote="Mikecr" data-source="post: 2376878" data-attributes="member: 1521"><p>I just categorize loaded ammo <em>concentricity adjusters</em> as 'neck benders' to set a more accurate representation.</p><p>They began I believe with the H&H Concentricity Gauge, which I had and tested long ago.</p><p>The whole idea centered on 'fixing' necks pulled off axis by die expander buttons.</p><p></p><p><strong>We should be wary of any fix that does not address a cause.</strong></p><p>If buttons pulled necks off axis, then that condition should be corrected or cleared.</p><p>I discovered that mandrel expansion does that, removing the problem that neck bending was supposed to fix.</p><p>But this is only one part of runout. Case runout still remains, and the cause of this still needs to be addressed.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 2376878, member: 1521"] I just categorize loaded ammo [I]concentricity adjusters[/I] as 'neck benders' to set a more accurate representation. They began I believe with the H&H Concentricity Gauge, which I had and tested long ago. The whole idea centered on 'fixing' necks pulled off axis by die expander buttons. [B]We should be wary of any fix that does not address a cause.[/B] If buttons pulled necks off axis, then that condition should be corrected or cleared. I discovered that mandrel expansion does that, removing the problem that neck bending was supposed to fix. But this is only one part of runout. Case runout still remains, and the cause of this still needs to be addressed. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Sinclair Concentricity Gauge
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