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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Is the 7mm RUM dead?
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<blockquote data-quote="codyadams" data-source="post: 2386034" data-attributes="member: 87243"><p>That isn't really a fair comparison, a 7mm vld vs a .338 SMK? Do it with a 7mm 180 Berger vs a .338 300 Berger at same velocity. (I'll run it at my environmentals)</p><p></p><p>1500 yds, 180 Berger hunting @ 3350 - </p><p></p><p>30.25 MOA</p><p>4.5 windage</p><p>1819 fps</p><p>1323 ft-lbs </p><p></p><p>1500 yds, 300 Berger hunting @ 2950 -</p><p></p><p>36.5 MOA</p><p>3.75 windage</p><p>1777 fps</p><p>2103 ft-lbs</p><p></p><p>While the. 338 is still behind on velocity and has a little more drop, the margin is much closer (6.25 MOA difference in drop vs 8.75 MOA, velocity is 42 fps different) and the .338 has a fair bit less windage, and significantly (780 ft-lbs) more energy. For shooting 2000 or farther, the higher energy and larger bullet is pretty relevant for spotting impacts. </p><p></p><p>I'm not, by any means, discounting the use of a 7 rum or the capabilities of it, just showing a better apples to apples comparison. The 7 rum is a substantial big game round no doubt. But it's no big bore .338</p></blockquote><p></p>
[QUOTE="codyadams, post: 2386034, member: 87243"] That isn't really a fair comparison, a 7mm vld vs a .338 SMK? Do it with a 7mm 180 Berger vs a .338 300 Berger at same velocity. (I'll run it at my environmentals) 1500 yds, 180 Berger hunting @ 3350 - 30.25 MOA 4.5 windage 1819 fps 1323 ft-lbs 1500 yds, 300 Berger hunting @ 2950 - 36.5 MOA 3.75 windage 1777 fps 2103 ft-lbs While the. 338 is still behind on velocity and has a little more drop, the margin is much closer (6.25 MOA difference in drop vs 8.75 MOA, velocity is 42 fps different) and the .338 has a fair bit less windage, and significantly (780 ft-lbs) more energy. For shooting 2000 or farther, the higher energy and larger bullet is pretty relevant for spotting impacts. I'm not, by any means, discounting the use of a 7 rum or the capabilities of it, just showing a better apples to apples comparison. The 7 rum is a substantial big game round no doubt. But it's no big bore .338 [/QUOTE]
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Is the 7mm RUM dead?
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