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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm on elk
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<blockquote data-quote="Len Backus" data-source="post: 21184" data-attributes="member: 1"><p>Or...use Lost River Ballistic's more solidly constructed 160 grain bullet with its .715 BC.</p><p></p><p>As of 2 days ago I finally have a properly twisted and chambered barrel that shoots them into 1/2 moa vertical group size at 500 and 700 yards. Won't be able to try them at 900 yards until after my deer season which starts tomorrow.</p><p></p><p>Anyway, 7mm Ultra at 3,450 fps from a 30 inch Hart stainless, 7 twist barrel. At an elevation of 8,000 feet and a range of 1,000 yards energy is still 2,140 ft/lbs. That's about the same as a 30/06 at 2 or 3 hundred yards. I think that will work quite well. The reduced drift from wind should be awesome. Computes to only 29 inches for 10 mph sidewind at 1,000 yards. My very small amount of experience tells me wind drift is the limiting factor for long range first-shot kills.</p></blockquote><p></p>
[QUOTE="Len Backus, post: 21184, member: 1"] Or...use Lost River Ballistic's more solidly constructed 160 grain bullet with its .715 BC. As of 2 days ago I finally have a properly twisted and chambered barrel that shoots them into 1/2 moa vertical group size at 500 and 700 yards. Won't be able to try them at 900 yards until after my deer season which starts tomorrow. Anyway, 7mm Ultra at 3,450 fps from a 30 inch Hart stainless, 7 twist barrel. At an elevation of 8,000 feet and a range of 1,000 yards energy is still 2,140 ft/lbs. That's about the same as a 30/06 at 2 or 3 hundred yards. I think that will work quite well. The reduced drift from wind should be awesome. Computes to only 29 inches for 10 mph sidewind at 1,000 yards. My very small amount of experience tells me wind drift is the limiting factor for long range first-shot kills. [/QUOTE]
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7mm on elk
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