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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Understanding cartridge efficiency
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<blockquote data-quote="Stgraves260" data-source="post: 1914841" data-attributes="member: 19988"><p>The closest thang I can figure out what your talking about would be something like this. Let's compare a 7 Rem Mag and a 7WSM. The 7 RM holds 83.2 H2O and the 7 WSM hold 83 H2O. So if Winchester's claims are correct and they can get the same FPS out of the WSM as the 7 RM with grain per grain bullet weight that would be 1% more efficient. You get the advantage of a shorter rifle. The 7 Mag would need a 26" barrel to achieve the same ballistics as the 7WSM with a 24" barrel. I thank that's what your talking about. Hope this helps.</p></blockquote><p></p>
[QUOTE="Stgraves260, post: 1914841, member: 19988"] The closest thang I can figure out what your talking about would be something like this. Let’s compare a 7 Rem Mag and a 7WSM. The 7 RM holds 83.2 H2O and the 7 WSM hold 83 H2O. So if Winchester’s claims are correct and they can get the same FPS out of the WSM as the 7 RM with grain per grain bullet weight that would be 1% more efficient. You get the advantage of a shorter rifle. The 7 Mag would need a 26” barrel to achieve the same ballistics as the 7WSM with a 24” barrel. I thank that’s what your talking about. Hope this helps. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Understanding cartridge efficiency
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