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Long Range Hunting & Shooting
Has the 6.5prc peaked in interested?
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<blockquote data-quote="J E Custom" data-source="post: 1714914" data-attributes="member: 2736"><p>No doubt the 6.5s are good calibers, but they have just about reached their limit in velocity. The 264 win mag and the 6.5 Remington mag are just about the limit of velocity and pressure. Both run just under 60,000 psi because of the bore diameter. much more pressure and barrel life suffers greatly. the 140 grain bullets can be pushed to over 3,000 ft/sec with SAMMI pressures. The 6.5 PRC runs 2,960 ft/sec so it is no better than several others unless pushed beyond SAMMI pressures.</p><p></p><p>The case is a 30o shouldered case (Kind of an Ackley) based on the RCM and designed for a short action. </p><p>The 338 RCM can do the same velocity with a 225 grain bullet because of the larger bullet diameter/ Sq/inch of the bore.</p><p></p><p>So is it better? or just different.</p><p>I like the RCM cases/cartridges so it should be a good cartridge but Any 6.5 cartridges that will meet or exceed 3,000 ft/sec with a 140+grain bullet will come with many issues, mainly barrel life.</p><p></p><p>There are many 6.5s that live in the 2900 ft/sec area that will do close to the same</p><p>but live longer so it remains to be seen if it will become just another 6.5.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1714914, member: 2736"] No doubt the 6.5s are good calibers, but they have just about reached their limit in velocity. The 264 win mag and the 6.5 Remington mag are just about the limit of velocity and pressure. Both run just under 60,000 psi because of the bore diameter. much more pressure and barrel life suffers greatly. the 140 grain bullets can be pushed to over 3,000 ft/sec with SAMMI pressures. The 6.5 PRC runs 2,960 ft/sec so it is no better than several others unless pushed beyond SAMMI pressures. The case is a 30o shouldered case (Kind of an Ackley) based on the RCM and designed for a short action. The 338 RCM can do the same velocity with a 225 grain bullet because of the larger bullet diameter/ Sq/inch of the bore. So is it better? or just different. I like the RCM cases/cartridges so it should be a good cartridge but Any 6.5 cartridges that will meet or exceed 3,000 ft/sec with a 140+grain bullet will come with many issues, mainly barrel life. There are many 6.5s that live in the 2900 ft/sec area that will do close to the same but live longer so it remains to be seen if it will become just another 6.5. J E CUSTOM [/QUOTE]
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Has the 6.5prc peaked in interested?
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