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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Rebarreling .257Wby Mark V
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<blockquote data-quote="Deleted member 46119" data-source="post: 1040344"><p>Yes these are QuickLoad numbers but after so much work I have confidence that it is representative of the real world relationship between the 2 chamberings.</p><p></p><p>Same seating depth, not the same COAL</p><p></p><p>7mm Rem Mag 26" Sierra 175 #1940 66.2 of 7828 60221psi 2982fps</p><p>7mm Wby Mag 26" Sierra 175 #1940 69.0 of 7828 60241psi 3006fps</p><p></p><p>So indeed, they are very very close at as close to the same pressure as I can predict.</p><p></p><p>I could build a 7mag do some testing, rechamber it to 7wby and retest but I ain't gonna.</p></blockquote><p></p>
[QUOTE="Deleted member 46119, post: 1040344"] Yes these are QuickLoad numbers but after so much work I have confidence that it is representative of the real world relationship between the 2 chamberings. Same seating depth, not the same COAL 7mm Rem Mag 26" Sierra 175 #1940 66.2 of 7828 60221psi 2982fps 7mm Wby Mag 26" Sierra 175 #1940 69.0 of 7828 60241psi 3006fps So indeed, they are very very close at as close to the same pressure as I can predict. I could build a 7mag do some testing, rechamber it to 7wby and retest but I ain't gonna. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Rebarreling .257Wby Mark V
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