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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
28 Nosler, Terrible barrel burner??
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<blockquote data-quote="Trickymissfit" data-source="post: 1138198" data-attributes="member: 25383"><p>without his books in front of me, I have to speculate a bit. The 6x57mm case (a factory 6mm Remington) in his views was about it before going into overbore. The 6.5-06 and the 6.5-.284 are also overbore, but not by a great amount as compared to some others. The .270 Winchester case is similar to the 6.5-06, and the bore is not that much larger. So yes it would be overbore, but by a great deal. A lot of this can be taken care of by going with heavy bullets, but not with larger overbore conditions. The 57mm Mauser case has been chambered in everything from 6mm to 8mm, but has also been wildcatted in everything from .224 to .358 at one time or another. When one looks at loadings he sees that the 6.5/7mm seem to be the best (would also include the .27x57), and this kind of confirms what Ackley said all along. Yet we also know that the 6.5 and 7mmx57 improved round are not overbore, or barely into overbore. Myself, I think the 30x57 improved would be a far better round than the .308, and have about a 50% greater barrel life. So to end this the .270 Win would be in overbore, but also nothing like the Nosler.</p><p></p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 1138198, member: 25383"] without his books in front of me, I have to speculate a bit. The 6x57mm case (a factory 6mm Remington) in his views was about it before going into overbore. The 6.5-06 and the 6.5-.284 are also overbore, but not by a great amount as compared to some others. The .270 Winchester case is similar to the 6.5-06, and the bore is not that much larger. So yes it would be overbore, but by a great deal. A lot of this can be taken care of by going with heavy bullets, but not with larger overbore conditions. The 57mm Mauser case has been chambered in everything from 6mm to 8mm, but has also been wildcatted in everything from .224 to .358 at one time or another. When one looks at loadings he sees that the 6.5/7mm seem to be the best (would also include the .27x57), and this kind of confirms what Ackley said all along. Yet we also know that the 6.5 and 7mmx57 improved round are not overbore, or barely into overbore. Myself, I think the 30x57 improved would be a far better round than the .308, and have about a 50% greater barrel life. So to end this the .270 Win would be in overbore, but also nothing like the Nosler. gary [/QUOTE]
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28 Nosler, Terrible barrel burner??
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