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Rifles, Reloading, Optics, Equipment
Gunsmithing
6.5 CM to .260 AI question
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<blockquote data-quote="MNbogboy" data-source="post: 1688132" data-attributes="member: 18849"><p>Having rechambered several 6.5/257 Bob AIs from 260s I know dimensionally yours will clean up because you will be totally going past the original CM shoulder and the Ackley shoulder is larger diameter. I have also gone the other way and chambered the CM in 260s but setback is required. No problem with "nutted" barrels.</p><p>The biggest hurdle depending on the original barrel condition and shot count may be firecracking & "hard spots" that the reamer won't like.</p><p>My .02</p><p>Edit: upon further research it appears the Ackley does not have larger shoulder diameter and will not clean up creedmoor without some barrel setback.</p></blockquote><p></p>
[QUOTE="MNbogboy, post: 1688132, member: 18849"] Having rechambered several 6.5/257 Bob AIs from 260s I know dimensionally yours will clean up because you will be totally going past the original CM shoulder and the Ackley shoulder is larger diameter. I have also gone the other way and chambered the CM in 260s but setback is required. No problem with "nutted" barrels. The biggest hurdle depending on the original barrel condition and shot count may be firecracking & "hard spots" that the reamer won't like. My .02 Edit: upon further research it appears the Ackley does not have larger shoulder diameter and will not clean up creedmoor without some barrel setback. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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6.5 CM to .260 AI question
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