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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm dilemma !!!!
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<blockquote data-quote="MudRunner2005" data-source="post: 1015340" data-attributes="member: 12995"><p>On paper, everything is looks good. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite6" alt=":cool:" title="Cool :cool:" loading="lazy" data-shortname=":cool:" /></p><p> </p><p>If you want to easily get past 3,000 fps with a 180, then the STW is the largest of the efficient 7mm calibers there is. Once you go beyond the STW, the efficiency drops off and the point of diminishing returns increases significantly.</p><p> </p><p>I'm a hair under 3K (2960 or 2980) with my STW and 180's and not even pushing it at all, with a 26" barrel. I'm at 71gr of 7828 SSC, and I have zero ejector marks, or flattened primers, so I'm going to continue ladder-testing on up to see what my highest powder charge and velocity I can get before pressure signs with Nosler brass.</p></blockquote><p></p>
[QUOTE="MudRunner2005, post: 1015340, member: 12995"] On paper, everything is looks good. :cool: If you want to easily get past 3,000 fps with a 180, then the STW is the largest of the efficient 7mm calibers there is. Once you go beyond the STW, the efficiency drops off and the point of diminishing returns increases significantly. I'm a hair under 3K (2960 or 2980) with my STW and 180's and not even pushing it at all, with a 26" barrel. I'm at 71gr of 7828 SSC, and I have zero ejector marks, or flattened primers, so I'm going to continue ladder-testing on up to see what my highest powder charge and velocity I can get before pressure signs with Nosler brass. [/QUOTE]
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7mm dilemma !!!!
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