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Rifles, Reloading, Optics, Equipment
7mm STW
7mm STW vs 7mm WBY
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<blockquote data-quote="Lefty7mmstw" data-source="post: 994056" data-attributes="member: 48043"><p>I am trying to ascertain where I got the 64,000 psi # from the 7stw from... I'm sure I saw it in print otherwise I'd have checked saami. Likely some loading article sorting the stw with the 300win and 338win, which are at 64,000psi. The roy, rum, and stw are all at 65,000 psi with a max sample of 69,100 psi.</p><p> </p><p><a href="http://www.saami.org/specifications_and_information/specifications/Velocity_Pressure_CfR.pdf" target="_blank">http://www.saami.org/specifications_and_information/specifications/Velocity_Pressure_CfR.pdf</a></p><p> </p><p> </p><p> it is interesting that the 25 roy and 270 roy are at 62,500 psi.... probably for good reason too...... <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 994056, member: 48043"] I am trying to ascertain where I got the 64,000 psi # from the 7stw from... I'm sure I saw it in print otherwise I'd have checked saami. Likely some loading article sorting the stw with the 300win and 338win, which are at 64,000psi. The roy, rum, and stw are all at 65,000 psi with a max sample of 69,100 psi. [URL]http://www.saami.org/specifications_and_information/specifications/Velocity_Pressure_CfR.pdf[/URL] it is interesting that the 25 roy and 270 roy are at 62,500 psi.... probably for good reason too...... :-) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
7mm STW
7mm STW vs 7mm WBY
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