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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cartridge design help please
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<blockquote data-quote="mitch260" data-source="post: 878851" data-attributes="member: 53720"><p>According to Quickloads, you would be lucky to get 3000 FPS out of a 270 wby in a 26in barrel loaded to mag length 3.340" with any suitable powder. Not saying this is 100% accurate, that's just what quickloads is saying.</p><p> </p><p>Now, a 270-300 wby loaded to mag length (3.640") can get about 3150 FPS out of the same barrel length. 85.3 grains of RL-33.</p><p> </p><p>Back to the 270-375 Ruger. This loaded to 3.340" in the same 26in barrel is also getting the same 3150 FPS with the same 85.3 grains of RL-33. To me this seems like the best choice due to the shorter length.</p><p> </p><p>Any of these could be improved by lengthening the throat, plus these aren't real world numbers. Take it for what its worth.</p></blockquote><p></p>
[QUOTE="mitch260, post: 878851, member: 53720"] According to Quickloads, you would be lucky to get 3000 FPS out of a 270 wby in a 26in barrel loaded to mag length 3.340" with any suitable powder. Not saying this is 100% accurate, that's just what quickloads is saying. Now, a 270-300 wby loaded to mag length (3.640") can get about 3150 FPS out of the same barrel length. 85.3 grains of RL-33. Back to the 270-375 Ruger. This loaded to 3.340" in the same 26in barrel is also getting the same 3150 FPS with the same 85.3 grains of RL-33. To me this seems like the best choice due to the shorter length. Any of these could be improved by lengthening the throat, plus these aren't real world numbers. Take it for what its worth. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Cartridge design help please
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