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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
257 AX
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<blockquote data-quote="Fiftydriver" data-source="post: 101783" data-attributes="member: 10"><p>Did one test barrel, identical to the STW in same length barrels. In fact seems to produce a bit less pressure at same velocites with same bullets but that goes to reason as it is a bit larger in case capacity.</p><p></p><p>Powder bridging is an issue still. Not to the degree that the Allen Mag is but still an issue. Ramshot magnum has proven to be a good choice. Same burn rate as Retumbo basically but with no powder bridging issues.</p><p></p><p>Happy with the one test rifle so its being offered as a chambering option form APS.</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 101783, member: 10"] Did one test barrel, identical to the STW in same length barrels. In fact seems to produce a bit less pressure at same velocites with same bullets but that goes to reason as it is a bit larger in case capacity. Powder bridging is an issue still. Not to the degree that the Allen Mag is but still an issue. Ramshot magnum has proven to be a good choice. Same burn rate as Retumbo basically but with no powder bridging issues. Happy with the one test rifle so its being offered as a chambering option form APS. Kirby Allen(50) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
257 AX
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