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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Questions for S1, brass preparation?
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<blockquote data-quote="Guest" data-source="post: 24724"><p>Howdy Brent </p><p> </p><p>The case wall thickness issue does not affect pressure in a significant way that I know of. The reason we measure it is because we resize the case, and care about concentricity. Any time you resize with different wall thickness you move the thin side more than the thick side, which allows the case to misalign with the neck, not good.</p><p> </p><p>I don't know if there is a small affect on case life, I have not noticed it if there is.</p><p> </p><p>The wall of a case tapers thinner the closer you get to the neck. We have found that if you measure too close to the bottom you can be fooled, and too high there is not as much variance to measure, thus .500 above the bottom of the inside of the powder column or end of the flash hole works well with Lapua cases. </p><p> </p><p>It is truly an accuracy issue, concentricity affects accuracy, whether or not it is worth it is up to you and your style of shooting. <img src="http://images/icons/smile.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Guest, post: 24724"] Howdy Brent The case wall thickness issue does not affect pressure in a significant way that I know of. The reason we measure it is because we resize the case, and care about concentricity. Any time you resize with different wall thickness you move the thin side more than the thick side, which allows the case to misalign with the neck, not good. I don't know if there is a small affect on case life, I have not noticed it if there is. The wall of a case tapers thinner the closer you get to the neck. We have found that if you measure too close to the bottom you can be fooled, and too high there is not as much variance to measure, thus .500 above the bottom of the inside of the powder column or end of the flash hole works well with Lapua cases. It is truly an accuracy issue, concentricity affects accuracy, whether or not it is worth it is up to you and your style of shooting. [img]images/icons/smile.gif[/img] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Questions for S1, brass preparation?
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