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Hunting
Long Range Hunting & Shooting
6.5/284 vs. 6.5/-06
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<blockquote data-quote="Bart B" data-source="post: 263141" data-attributes="member: 5302"><p>Checked the article your link went to and the following part of it got my attention:</p><p></p><p>"They ... provide better trajectory performance for both wind and drop than the standard 190gr SMK load in .300 Winchester Magnum,..." (then later) "Once you're using the same high-BC bullet, adding 150 fps to get 2970 fps instead of a more sedate 2820 fps only gains about four inches of wind drift per 10 mph cross!"</p><p></p><p>Wrong; a 190 SMK leaving a .300 Win. Mag drops about 10% less than the best of those mentioned in the article and much less than those using less powder than the 6.5-284. And the 6.5-284's wind drift at 1000 yards with a 140-gr. bullet is the same as a 190 SMK from a .300 Winnie. The 1000-yard wind drift difference between a high-BC 140-gr. bullet leaving 2820 and 2970 fps is about 10 inches, not about 4 inches.</p><p></p><p>I think the barrel life numbers are wrong, but barrel life claims usually have a wide range. Barrel life is inversely proportional to shooter's accuracy skills. Folks who don't shoot very accurate claim longer barrel life than those who do.</p></blockquote><p></p>
[QUOTE="Bart B, post: 263141, member: 5302"] Checked the article your link went to and the following part of it got my attention: "They ... provide better trajectory performance for both wind and drop than the standard 190gr SMK load in .300 Winchester Magnum,...” (then later) “Once you're using the same high-BC bullet, adding 150 fps to get 2970 fps instead of a more sedate 2820 fps only gains about four inches of wind drift per 10 mph cross!” Wrong; a 190 SMK leaving a .300 Win. Mag drops about 10% less than the best of those mentioned in the article and much less than those using less powder than the 6.5-284. And the 6.5-284's wind drift at 1000 yards with a 140-gr. bullet is the same as a 190 SMK from a .300 Winnie. The 1000-yard wind drift difference between a high-BC 140-gr. bullet leaving 2820 and 2970 fps is about 10 inches, not about 4 inches. I think the barrel life numbers are wrong, but barrel life claims usually have a wide range. Barrel life is inversely proportional to shooter’s accuracy skills. Folks who don’t shoot very accurate claim longer barrel life than those who do. [/QUOTE]
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Long Range Hunting & Shooting
6.5/284 vs. 6.5/-06
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