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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
375 Cheytac
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<blockquote data-quote="Joel Russo" data-source="post: 919906" data-attributes="member: 6152"><p>We have been suggesting that a shank diameter of 1.350" is marginal and should be minimum on these .408 based chamberings. Some of us have stepped up to 1.400"-1.450".</p><p>Notice I said suggested....we have not invested in instrumentation and gauges required for measuring CUP in the Piezeo or pressure trace based systems as calibration certainly becomes an issue not to mention cost. </p><p>So we have erred on the side of safety and stepped up the diameter to at least 1.350". Most actions available are 1.450" - 1.600", so the larger shank is not problematic.</p><p>For the guys wanting to build the lighter rifles, an 1.450" dia action and a barrel that has a shank dia of 1.350" and tapers to .900" or so at the muzzle will fit the bill nicely.</p></blockquote><p></p>
[QUOTE="Joel Russo, post: 919906, member: 6152"] We have been suggesting that a shank diameter of 1.350" is marginal and should be minimum on these .408 based chamberings. Some of us have stepped up to 1.400"-1.450". Notice I said suggested....we have not invested in instrumentation and gauges required for measuring CUP in the Piezeo or pressure trace based systems as calibration certainly becomes an issue not to mention cost. So we have erred on the side of safety and stepped up the diameter to at least 1.350". Most actions available are 1.450" - 1.600", so the larger shank is not problematic. For the guys wanting to build the lighter rifles, an 1.450" dia action and a barrel that has a shank dia of 1.350" and tapers to .900" or so at the muzzle will fit the bill nicely. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
375 Cheytac
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