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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 - 2900 ft/s most efficiently?
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<blockquote data-quote="Greyfox" data-source="post: 1503577" data-attributes="member: 10291"><p>So far, based on actual results there sure doesn't seem to be anything that indicates there is much if any material difference between the 6.5PRC and 6.5x284 other then the(rather subtle) case dimensions. Pressures, charge weights, accuracy, velocity, ES, and powder capacity is comparable. Many are coming to the conclusion that the 6.5 PRC is more efficient(or performs better) based on load data shown in the reloading manuals, not understanding that the 6.5x284 loads are understated because of historical differences in throating. Anecdotes about velocity differences with either cartridge between specific barrels can also be misleading since velocities can swing as much as 50FPS with either. Barrel life differences between the two remain to be seen, but will likely be comparable under similar conditions. The major benefit of the 6.5PRC is the availability of higher performance factory ammo. Special accommodations to the feeding system are neccessary to achieve the performance of the 6.5PRC cartridge in a true short action. Pick your poison!</p></blockquote><p></p>
[QUOTE="Greyfox, post: 1503577, member: 10291"] So far, based on actual results there sure doesn’t seem to be anything that indicates there is much if any material difference between the 6.5PRC and 6.5x284 other then the(rather subtle) case dimensions. Pressures, charge weights, accuracy, velocity, ES, and powder capacity is comparable. Many are coming to the conclusion that the 6.5 PRC is more efficient(or performs better) based on load data shown in the reloading manuals, not understanding that the 6.5x284 loads are understated because of historical differences in throating. Anecdotes about velocity differences with either cartridge between specific barrels can also be misleading since velocities can swing as much as 50FPS with either. Barrel life differences between the two remain to be seen, but will likely be comparable under similar conditions. The major benefit of the 6.5PRC is the availability of higher performance factory ammo. Special accommodations to the feeding system are neccessary to achieve the performance of the 6.5PRC cartridge in a true short action. Pick your poison! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 - 2900 ft/s most efficiently?
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