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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Opinions wanted, or facts...About 6.5x284 or 260 barrel life
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<blockquote data-quote="Trickymissfit" data-source="post: 650307" data-attributes="member: 25383"><p>the problem with both the .260 and the 6.5/284 is too short of a neck length. Although the .284 case has a better shoulder angle. Thenyou add into fact that the 6.5/284 is pretty much overbore, but not to the extreme like a.264 mag. Even the 6.5-06 is a little overbore as well. But it has a much longer neck length to help with the barrell life. The 6.5-06AI should have a much longer barrel life than either of the other two, but will also require a long action. The 6.5x55 will fit in a short action, and is not in an overbore condition. The 6.5x57AI would be even better but you'll run into about .04 case shrinkage when fire forming. This puts you right back into the short neck syndrome. But a 6.5x55AI reamed with a .33" neck length would be easilly better than any round discussed here (that's why I said to use the 57mm case as a parent case). I think it could well be the best 6.5 round period. Just ream the chamber short with a 6.5-06AI reamer for a 6.5x55AI headspace. (all Ackley cases have the same taper per inch and the same shoulder angle)</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 650307, member: 25383"] the problem with both the .260 and the 6.5/284 is too short of a neck length. Although the .284 case has a better shoulder angle. Thenyou add into fact that the 6.5/284 is pretty much overbore, but not to the extreme like a.264 mag. Even the 6.5-06 is a little overbore as well. But it has a much longer neck length to help with the barrell life. The 6.5-06AI should have a much longer barrel life than either of the other two, but will also require a long action. The 6.5x55 will fit in a short action, and is not in an overbore condition. The 6.5x57AI would be even better but you'll run into about .04 case shrinkage when fire forming. This puts you right back into the short neck syndrome. But a 6.5x55AI reamed with a .33" neck length would be easilly better than any round discussed here (that's why I said to use the 57mm case as a parent case). I think it could well be the best 6.5 round period. Just ream the chamber short with a 6.5-06AI reamer for a 6.5x55AI headspace. (all Ackley cases have the same taper per inch and the same shoulder angle) gary [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Opinions wanted, or facts...About 6.5x284 or 260 barrel life
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