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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Case capacity gained with improved cartridges
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<blockquote data-quote="Len Backus" data-source="post: 30427" data-attributes="member: 1"><p>After doing some more careful measuring, it looks as if my 7 Lapua Improved project will net me somewhere around a 6 grain increase in nominal powder capacity over that of a 7 RUM. That's good enough for me, especially with the advantage gained in brass quality.</p><p></p><p>The increase gained with the various 30/338 Lapuas of our members over the parent case seems to be somewhere around 7 grains. I would be most interested to learn of the amount of gains achieved with other common "improved' cartridge projects. Who has good data on the 300 Tomahawk project, before and after?</p></blockquote><p></p>
[QUOTE="Len Backus, post: 30427, member: 1"] After doing some more careful measuring, it looks as if my 7 Lapua Improved project will net me somewhere around a 6 grain increase in nominal powder capacity over that of a 7 RUM. That's good enough for me, especially with the advantage gained in brass quality. The increase gained with the various 30/338 Lapuas of our members over the parent case seems to be somewhere around 7 grains. I would be most interested to learn of the amount of gains achieved with other common "improved' cartridge projects. Who has good data on the 300 Tomahawk project, before and after? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Case capacity gained with improved cartridges
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