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Rifles, Reloading, Optics, Equipment
Reloading
Calling all 270 cal loyals.
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<blockquote data-quote="nicholasjohn" data-source="post: 1822878" data-attributes="member: 109113"><p>I have an article about a cartridge called the 270 Redding. It's a 308 case with a 30 degree shoulder. I think they blew out some of the body taper; don't know what they did with shoulder location. Wayne Van Zwoll wrote the article, and it's in a big book called WILDCAT CARTRIDGES from Wolfe Publishing. In a nutshell, with the powders that were available when the article was written, he was able to duplicate 270 Winchester velocities with bullet weights up to 130 grains, in a pretty long barrel. With anything heavier, the smaller case capacity kept velocities somewhat slower - as one would expect. </p><p></p><p>If someone did this today, they would probably want to shorten the case a bit - otherwise, with a long & heavy bullet, the ogive would be inside the mouth of the case neck, if it was all going to fit in the magazine. ( This is why the Creedmoor case is a bit shorter than the 260 Remington.) Just opening up the neck of the 6.5 Creedmoor case for a .277" bullet would achieve this, and you're right - this has probably already been done. I'm sure that somebody will chime in on this and you'll have the answer. I'll also bet that it would work pretty well, and that there will be guys who won't like it because it's a derivative of the Creedmoor case that they so much like to criticize. If one is a fan of the Creedmoor, and also a 270 fan, this would be the obvious combination to take a look at - particularly now that here are some long-range bullets being produced for the new 27 Nosler. I also think that a fatter cartridge case is likely to generate more interest, but that would certainly not negate the usefulness of a 308-based 270 cartridge.</p></blockquote><p></p>
[QUOTE="nicholasjohn, post: 1822878, member: 109113"] I have an article about a cartridge called the 270 Redding. It's a 308 case with a 30 degree shoulder. I think they blew out some of the body taper; don't know what they did with shoulder location. Wayne Van Zwoll wrote the article, and it's in a big book called WILDCAT CARTRIDGES from Wolfe Publishing. In a nutshell, with the powders that were available when the article was written, he was able to duplicate 270 Winchester velocities with bullet weights up to 130 grains, in a pretty long barrel. With anything heavier, the smaller case capacity kept velocities somewhat slower - as one would expect. If someone did this today, they would probably want to shorten the case a bit - otherwise, with a long & heavy bullet, the ogive would be inside the mouth of the case neck, if it was all going to fit in the magazine. ( This is why the Creedmoor case is a bit shorter than the 260 Remington.) Just opening up the neck of the 6.5 Creedmoor case for a .277" bullet would achieve this, and you're right - this has probably already been done. I'm sure that somebody will chime in on this and you'll have the answer. I'll also bet that it would work pretty well, and that there will be guys who won't like it because it's a derivative of the Creedmoor case that they so much like to criticize. If one is a fan of the Creedmoor, and also a 270 fan, this would be the obvious combination to take a look at - particularly now that here are some long-range bullets being produced for the new 27 Nosler. I also think that a fatter cartridge case is likely to generate more interest, but that would certainly not negate the usefulness of a 308-based 270 cartridge. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Calling all 270 cal loyals.
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