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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Elk Rifle 270 wsm 300wm 300wsm
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<blockquote data-quote="MontanaRifleman" data-source="post: 808942" data-attributes="member: 11717"><p>KE can be a deceptive terminal performance indicator and I shy away from it other than a ball park reference. In determining KE, the velocity is squared and then multiplied by mass over 2, placing a lot greater emphasis on velocity than mass.</p><p></p><p><img src="http://upload.wikimedia.org/math/1/1/e/11e6fc84bb2641d36b09c5a6359f7c08.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>It does not take into account the amount of destruction caused by the actual size of the bullet and the permanent wound channel it leaves behind and doesn't give an accurate picture of the bullet's ability to smash bone and penetrate deeply. Momentum is a much better indicator of penetration potential.</p><p></p><p>For example, would you rather shoot a cape buff with a 50 gr 22 cal bullet with a velocity of 6000 fps (exaggeration) and a KE of 4000 or with a 350 gr 375 cal bullet with a velocity of 2200 fps and a KE of 3700? The 50 gr 22 cal bullet is the obvious choice right?</p><p></p><p>Not trying to talk you out of the 270. It should do fine to the distances you are talking about, but the 300's will cause more tissue destruction on the elk and smash and penetrate heavy bone better (if needed) when using heavy for cal bullets.</p><p></p><p>That said, if this was going to be my once- in-a-while elk rifle and mostly used for deer and hogs, I might pick the 270 also... but on the other hand, that's why I have more than one rifle <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 808942, member: 11717"] KE can be a deceptive terminal performance indicator and I shy away from it other than a ball park reference. In determining KE, the velocity is squared and then multiplied by mass over 2, placing a lot greater emphasis on velocity than mass. [IMG]http://upload.wikimedia.org/math/1/1/e/11e6fc84bb2641d36b09c5a6359f7c08.png[/IMG] It does not take into account the amount of destruction caused by the actual size of the bullet and the permanent wound channel it leaves behind and doesn't give an accurate picture of the bullet's ability to smash bone and penetrate deeply. Momentum is a much better indicator of penetration potential. For example, would you rather shoot a cape buff with a 50 gr 22 cal bullet with a velocity of 6000 fps (exaggeration) and a KE of 4000 or with a 350 gr 375 cal bullet with a velocity of 2200 fps and a KE of 3700? The 50 gr 22 cal bullet is the obvious choice right? Not trying to talk you out of the 270. It should do fine to the distances you are talking about, but the 300's will cause more tissue destruction on the elk and smash and penetrate heavy bone better (if needed) when using heavy for cal bullets. That said, if this was going to be my once- in-a-while elk rifle and mostly used for deer and hogs, I might pick the 270 also... but on the other hand, that's why I have more than one rifle :) [/QUOTE]
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Elk Rifle 270 wsm 300wm 300wsm
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