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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
N570 Is It Worth It?
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<blockquote data-quote="J E Custom" data-source="post: 1659776" data-attributes="member: 2736"><p>I have my own opinion about N 570 and like everything about it except the price. </p><p></p><p>I have several wild cats that It realy improved the performance of in both velocity and accuracy. I limit my pressure to 63,000 psi in all of my loads and N 570 normally gets me more velocity at the same pressures</p><p>which is the reason why I wildcat cartridges in the first place. (More slow burning powder and more velocity at the same pressure.</p><p></p><p>Barrel throat erosion is related to the shape of the powder grains, the amount being pushed out of the case, and the temperature of the rifle with consecutive shots. (Not allowing it to cool).</p><p></p><p>Ball powder is said to be less erosive because of it's shape. Most of the powders are tubular and can cause more erosion according to the military.</p><p></p><p>Some of my wild cats have powder charges ranging from 110 grains</p><p>to 145 grains And I haven't seen any faster throat erosion than other magnum cartridges if the rifle is allowed to cool between shots. Big powder charges produce more heat and require fewer consecutive shots because of the BTU input of these large powder charges.</p><p></p><p>It is great powder and in some cartridges is the best choice. Most powders will become heat sensitive at some point based on the temperature when fired and the amount of the powder charge, so we just have to work up to find out when a particular powder goes critical.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1659776, member: 2736"] I have my own opinion about N 570 and like everything about it except the price. I have several wild cats that It realy improved the performance of in both velocity and accuracy. I limit my pressure to 63,000 psi in all of my loads and N 570 normally gets me more velocity at the same pressures which is the reason why I wildcat cartridges in the first place. (More slow burning powder and more velocity at the same pressure. Barrel throat erosion is related to the shape of the powder grains, the amount being pushed out of the case, and the temperature of the rifle with consecutive shots. (Not allowing it to cool). Ball powder is said to be less erosive because of it's shape. Most of the powders are tubular and can cause more erosion according to the military. Some of my wild cats have powder charges ranging from 110 grains to 145 grains And I haven't seen any faster throat erosion than other magnum cartridges if the rifle is allowed to cool between shots. Big powder charges produce more heat and require fewer consecutive shots because of the BTU input of these large powder charges. It is great powder and in some cartridges is the best choice. Most powders will become heat sensitive at some point based on the temperature when fired and the amount of the powder charge, so we just have to work up to find out when a particular powder goes critical. J E CUSTOM [/QUOTE]
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N570 Is It Worth It?
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