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Elk Hunting
1500 ft/lb energy requirement?
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<blockquote data-quote="WY02K" data-source="post: 1576887" data-attributes="member: 85125"><p>""This is a great post. To anyone snickering, there is no hyperbole here. Shot placement is a thing - doesn't take much to punch a rib.""</p><p></p><p>Fully agree with this. 64 yards on a 3 yr old bull, 550 gr. arrow shattered the near side rib and cut the far side rib in half, arrow fell out the other side. For rifles ribs are a blessing, best way to get expansion on a bullet before it reaches the vitals. </p><p>I'll try to find the link to the study so you all can read it but it basically states that somewhere in the 2000-2500 fps range is when kinetic energy no longer becomes a factor, this is due to the lower threshold that hydrostatic shock will not do enough damage to soft tissues. When velocities become low enough the damage from an expanded bullet will be isolated to a small hydrostatic wound channel and whatever the bullet contacts, similar to how an arrow kills. They claim that KE is a worthless number at this point and does not apply to arrows at all. There is a spot just above the lungs and below the spine that is a terrible place to put a bullet below this velocity threshold, it will not break the spine. 864 yards on a 4yr old cow, 215 Berger at 2910 fps. She lost a lot of blood but required a follow up shot that came 30 minutes later, we were pretty freaked out over it. I thought this was a fluke until it happened on a calf at 699. Couldn't believe that it didn't break the spine, we learned a lot that day about the high lung shot and temperature sensitive powder affecting POI. I no longer look at energy numbers, only velocities.</p></blockquote><p></p>
[QUOTE="WY02K, post: 1576887, member: 85125"] ""This is a great post. To anyone snickering, there is no hyperbole here. Shot placement is a thing - doesn't take much to punch a rib."" Fully agree with this. 64 yards on a 3 yr old bull, 550 gr. arrow shattered the near side rib and cut the far side rib in half, arrow fell out the other side. For rifles ribs are a blessing, best way to get expansion on a bullet before it reaches the vitals. I'll try to find the link to the study so you all can read it but it basically states that somewhere in the 2000-2500 fps range is when kinetic energy no longer becomes a factor, this is due to the lower threshold that hydrostatic shock will not do enough damage to soft tissues. When velocities become low enough the damage from an expanded bullet will be isolated to a small hydrostatic wound channel and whatever the bullet contacts, similar to how an arrow kills. They claim that KE is a worthless number at this point and does not apply to arrows at all. There is a spot just above the lungs and below the spine that is a terrible place to put a bullet below this velocity threshold, it will not break the spine. 864 yards on a 4yr old cow, 215 Berger at 2910 fps. She lost a lot of blood but required a follow up shot that came 30 minutes later, we were pretty freaked out over it. I thought this was a fluke until it happened on a calf at 699. Couldn't believe that it didn't break the spine, we learned a lot that day about the high lung shot and temperature sensitive powder affecting POI. I no longer look at energy numbers, only velocities. [/QUOTE]
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1500 ft/lb energy requirement?
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