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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Big Seven Case Capacities
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<blockquote data-quote="dwm" data-source="post: 29880" data-attributes="member: 1136"><p>For what it's worth I measured 3300+ FPS with a 168 SMK and 100 grains of H50BMG with a 7MM RUM and a 28" barrel. Pretty sure that I could have gone faster ...</p><p></p><p>Add 8 grains more bullet and 6 inches to the barrel ...</p><p></p><p>I've never had a primer pocket loosen in 7MM RUM Remington brass so I must not operate anywhere near the pressures some do. </p><p></p><p>I get bad head stamps and bolts that are quite hard to lift from time to time.</p><p></p><p>I have had a case separate after 8 or 9 firings ...</p><p></p><p>Doug</p></blockquote><p></p>
[QUOTE="dwm, post: 29880, member: 1136"] For what it's worth I measured 3300+ FPS with a 168 SMK and 100 grains of H50BMG with a 7MM RUM and a 28" barrel. Pretty sure that I could have gone faster ... Add 8 grains more bullet and 6 inches to the barrel ... I've never had a primer pocket loosen in 7MM RUM Remington brass so I must not operate anywhere near the pressures some do. I get bad head stamps and bolts that are quite hard to lift from time to time. I have had a case separate after 8 or 9 firings ... Doug [/QUOTE]
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Big Seven Case Capacities
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