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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300RUM brass life????????
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<blockquote data-quote="Darryl Cassel" data-source="post: 28062" data-attributes="member: 34"><p>Just C</p><p></p><p>Neck sizing is NOT always the best way to go for large magnum sized cases when trying for the best accuracy.</p><p>Brass has a tendency to flow more rapidly with additional pressure and heat that the larger mag cases produce.</p><p></p><p>With small cases such as the PPC and 222 style cases just necking is the way to reload and shoot for accuracy.</p><p></p><p>Big mag cases are a different ball game and we have found that, the best accuracy for 1000 yard match shooting is with full length sized cases.</p><p></p><p>I knew of one fellow that won the aggregate a few years ago that fired brand new brass in every match. It was never reloaded and fired the second time.</p><p></p><p>That showed a lot of us that the neck sizing only is NOT the way to go in long range target or hunting situations.</p><p></p><p>This is especially true with the Remington brass that seems to flow a lot under pressure when fired. You will get quite a bit of stretching in the standard 300 RUM. </p><p>In the Tomahawk and it's 35 degree shoulder, this is not as drastic.</p><p></p><p>I wish Lapua or Norma made 300 RUM brass. </p><p></p><p>Check your overall length and cut it back .010" from factory specs. </p><p>Keep your cases clean and "full length" size after "every" firing.</p><p></p><p>There are several of us getting many firings out of our cases by using this method.</p><p> </p><p>Later</p><p>DC</p></blockquote><p></p>
[QUOTE="Darryl Cassel, post: 28062, member: 34"] Just C Neck sizing is NOT always the best way to go for large magnum sized cases when trying for the best accuracy. Brass has a tendency to flow more rapidly with additional pressure and heat that the larger mag cases produce. With small cases such as the PPC and 222 style cases just necking is the way to reload and shoot for accuracy. Big mag cases are a different ball game and we have found that, the best accuracy for 1000 yard match shooting is with full length sized cases. I knew of one fellow that won the aggregate a few years ago that fired brand new brass in every match. It was never reloaded and fired the second time. That showed a lot of us that the neck sizing only is NOT the way to go in long range target or hunting situations. This is especially true with the Remington brass that seems to flow a lot under pressure when fired. You will get quite a bit of stretching in the standard 300 RUM. In the Tomahawk and it's 35 degree shoulder, this is not as drastic. I wish Lapua or Norma made 300 RUM brass. Check your overall length and cut it back .010" from factory specs. Keep your cases clean and "full length" size after "every" firing. There are several of us getting many firings out of our cases by using this method. Later DC [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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300RUM brass life????????
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