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Rifles, Reloading, Optics, Equipment
Gunsmithing
7WSM conversion
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<blockquote data-quote="Pdvdh" data-source="post: 2285065" data-attributes="member: 4191"><p>Hard to find a 7mm cartridge with a larger case diameter and a magnum bolt face / case head diameter than your 7mm WSM, for purposes of rechambering your existing barrel. I can't think of any factory SAAMI cartridge larger in diameter than your 7mmWSM chamber.</p><p></p><p>You may have to start with a new barrel if dead set on a different cartridge for your Borden short length action with the magnum bolt face. </p><p></p><p>I located a 100ct box of Norma 270WSM casings. So I'm rechambering a 25-300RUM to a 25WSM, because the WSM case is slightly larger in diameter than even the RUM series of cartridges. But my rechamber of my existing barrel will require that the threaded tenon on my barrel be cut off, and a new threaded tenon cut, because the WSM case is so short.</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 2285065, member: 4191"] Hard to find a 7mm cartridge with a larger case diameter and a magnum bolt face / case head diameter than your 7mm WSM, for purposes of rechambering your existing barrel. I can't think of any factory SAAMI cartridge larger in diameter than your 7mmWSM chamber. You may have to start with a new barrel if dead set on a different cartridge for your Borden short length action with the magnum bolt face. I located a 100ct box of Norma 270WSM casings. So I'm rechambering a 25-300RUM to a 25WSM, because the WSM case is slightly larger in diameter than even the RUM series of cartridges. But my rechamber of my existing barrel will require that the threaded tenon on my barrel be cut off, and a new threaded tenon cut, because the WSM case is so short. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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7WSM conversion
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