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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Weatherby's new 6.5 RPM cartridge
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<blockquote data-quote="yorke-1" data-source="post: 1706681" data-attributes="member: 11960"><p>The performance numbers actually make sense if they're keeping a 3.400" OAL and a 24" barrel. </p><p></p><p>Weatherby said the RPM was designed specifically for their 6 lug action which is smaller than their standard Mk V. I'll bet that the smaller 6 lug action is just too small to use a .535" case head and this was the best way to hit that 3000 fps sweet spot within the limitations of the action. I think it's a great idea. Weatherby doesn't need to worry about other companies adopting their designs so they just came up with something that would work within the limitations of the actions they make. It's the same reason all of the Nosler rounds were designed around a 3.400" OAL in stead of a 3.600" length, that's just the limitation of the actions they use. Same with the SAUM cartridges from Rem working around their Model 7 action.</p></blockquote><p></p>
[QUOTE="yorke-1, post: 1706681, member: 11960"] The performance numbers actually make sense if they're keeping a 3.400" OAL and a 24" barrel. Weatherby said the RPM was designed specifically for their 6 lug action which is smaller than their standard Mk V. I'll bet that the smaller 6 lug action is just too small to use a .535" case head and this was the best way to hit that 3000 fps sweet spot within the limitations of the action. I think it's a great idea. Weatherby doesn't need to worry about other companies adopting their designs so they just came up with something that would work within the limitations of the actions they make. It's the same reason all of the Nosler rounds were designed around a 3.400" OAL in stead of a 3.600" length, that's just the limitation of the actions they use. Same with the SAUM cartridges from Rem working around their Model 7 action. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Weatherby's new 6.5 RPM cartridge
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