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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Fastest 6.5 out of a 16-18” barrel and SA
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<blockquote data-quote="J E Custom" data-source="post: 1995135" data-attributes="member: 2736"><p>The 6.5 Rem Mag and the 6.5 PRC are the top contenders for velocity in a short action that you can buy Loaded ammo for. the Rem mag does well with 140 class bullets and the PRC does almost the exact same with the 140's, but the PRC has loading data for the heavier bullets, But gives up some velocity with the 150 class of bullets. So your choice is the same performance with ether cartridge. with the newer powders both can be loaded to equal performance.</p><p></p><p>To get maximum velocity/Energy from a shorter barrel you will probably end up going to a 130 to 140 class bullet.</p><p></p><p>Example: A 140 class bullet at maximum velocity in a 26" barrel will push 3000 ft/sec velocity for 2798 ft/lbs of muzzle energy.</p><p></p><p>A 153 grain bullet will reach Maximum velocity in a 26" barrel of 2700 ft/sec for 2477 ft/lbs of muzzle energy (321 ft/lbs less than the 140class bullets).</p><p></p><p>When you shorten a barrel to shoot like cartridges these numbers will decline to some velocity/energy levels close to each other and the results will be proportional based on the Barrel length. </p><p></p><p>I have built and owned short barrel rifles from 16.5" to 18.5 and the jump to 20" had a large impact on the velocity. I have sense decided that 20" to 22" barrels are as short as I will go If I want any performance.</p><p></p><p>Just a recommendation <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1995135, member: 2736"] The 6.5 Rem Mag and the 6.5 PRC are the top contenders for velocity in a short action that you can buy Loaded ammo for. the Rem mag does well with 140 class bullets and the PRC does almost the exact same with the 140's, but the PRC has loading data for the heavier bullets, But gives up some velocity with the 150 class of bullets. So your choice is the same performance with ether cartridge. with the newer powders both can be loaded to equal performance. To get maximum velocity/Energy from a shorter barrel you will probably end up going to a 130 to 140 class bullet. Example: A 140 class bullet at maximum velocity in a 26" barrel will push 3000 ft/sec velocity for 2798 ft/lbs of muzzle energy. A 153 grain bullet will reach Maximum velocity in a 26" barrel of 2700 ft/sec for 2477 ft/lbs of muzzle energy (321 ft/lbs less than the 140class bullets). When you shorten a barrel to shoot like cartridges these numbers will decline to some velocity/energy levels close to each other and the results will be proportional based on the Barrel length. I have built and owned short barrel rifles from 16.5" to 18.5 and the jump to 20" had a large impact on the velocity. I have sense decided that 20" to 22" barrels are as short as I will go If I want any performance. Just a recommendation :) J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Fastest 6.5 out of a 16-18” barrel and SA
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