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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mmRUM & Retumbo
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<blockquote data-quote="speedbump" data-source="post: 25340" data-attributes="member: 547"><p>Thanks for the replies. </p><p></p><p>S1, </p><p>I haven't tried AA8700, but it's a thought. Anyone have any results from it in a RUM sized case?</p><p></p><p>Tim, </p><p>These will hold @ 103gr of water if memory serves. This is the full sized RUM necked down to .284, not a short action magnum.</p><p></p><p>4mesh,</p><p>This is nowhere near full. It looks like there is @ 3/16" left unfilled below the shoulder. That's been a consistent problem too, most powders I've tried leave a disturbingly large amount of case unfilled. The BMG powders are better in that regard, but with this overbore, a 7RUM acts like it likes something between say, H50BMG & IMR7828. It doesn't know what it really is yet....that's why I was curious about the Retumbo's burn rate properties.</p><p></p><p>BH,</p><p>Good point. 200 is all I have access to on a day-in-day-out basis. There's a severe shortage of LR ranges available here. I have to drive @ 6+ hours north to near Iowa, or 4.5 hours southeast to Fatboy country <img src="http://images/icons/grin.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /> in Tennessee to get a 1,000 yard range. Some pals in Indiana have access to 1K, but only if the crops are out & the weather's dry. It's a tough combination to achieve around here! I can go out to 600 in the next couple of weeks I think.</p><p></p><p>Feel free to fire any more thoughts & opinions out - I'm wide open....</p></blockquote><p></p>
[QUOTE="speedbump, post: 25340, member: 547"] Thanks for the replies. S1, I haven't tried AA8700, but it's a thought. Anyone have any results from it in a RUM sized case? Tim, These will hold @ 103gr of water if memory serves. This is the full sized RUM necked down to .284, not a short action magnum. 4mesh, This is nowhere near full. It looks like there is @ 3/16" left unfilled below the shoulder. That's been a consistent problem too, most powders I've tried leave a disturbingly large amount of case unfilled. The BMG powders are better in that regard, but with this overbore, a 7RUM acts like it likes something between say, H50BMG & IMR7828. It doesn't know what it really is yet....that's why I was curious about the Retumbo's burn rate properties. BH, Good point. 200 is all I have access to on a day-in-day-out basis. There's a severe shortage of LR ranges available here. I have to drive @ 6+ hours north to near Iowa, or 4.5 hours southeast to Fatboy country [img]images/icons/grin.gif[/img] in Tennessee to get a 1,000 yard range. Some pals in Indiana have access to 1K, but only if the crops are out & the weather's dry. It's a tough combination to achieve around here! I can go out to 600 in the next couple of weeks I think. Feel free to fire any more thoughts & opinions out - I'm wide open.... [/QUOTE]
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