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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet lethality: energy and velocity
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<blockquote data-quote="MTbackwoods" data-source="post: 1902609" data-attributes="member: 113441"><p>Agreed. However, you could have a 200 grain FMJ and a 200 grain Berger VLD going the same velocity, say your 3,000 FPS. Which one will cause more tissue damage on a soft target? The VLD will based on the fact that the bullet will not only open, but it will also shed a substantial amount of it's own mass and therefore energy, into the target. That transfer of energy creates a larger permanent wound channel, a massive temporary wound channel and also disrupts more organs and tissue from the hydrostatic shock as the bullet expands and transfers it's energy. It has to be an apples to apples comparison. And a bullet is only creating a large temporary wound cavity, like the ones we see in all the slow-mo gel tests, while it is in the process of expanding. Once the bullet reaches the maximum diameter it will expand to, the temporary wound cavity collapses and the bullet continues on making a much smaller permanent wound. So a .308 bullet expands to a maximum diameter of .45. So while it is in the process of expanding, it is making a temporary wound cavity many, many times it's size. As soon as the bullet stops expanding however, it continues on making a .45" hole until it exits or loses all velocity. I'm interested in that energy dump. At what point is there not enough energy to cause rapid death? At what point is there not enough hydrostatic shock? At what point is there not enough of a temporary wound channel to create enough tissue damage to kill quickly or almost instantly?</p></blockquote><p></p>
[QUOTE="MTbackwoods, post: 1902609, member: 113441"] Agreed. However, you could have a 200 grain FMJ and a 200 grain Berger VLD going the same velocity, say your 3,000 FPS. Which one will cause more tissue damage on a soft target? The VLD will based on the fact that the bullet will not only open, but it will also shed a substantial amount of it’s own mass and therefore energy, into the target. That transfer of energy creates a larger permanent wound channel, a massive temporary wound channel and also disrupts more organs and tissue from the hydrostatic shock as the bullet expands and transfers it’s energy. It has to be an apples to apples comparison. And a bullet is only creating a large temporary wound cavity, like the ones we see in all the slow-mo gel tests, while it is in the process of expanding. Once the bullet reaches the maximum diameter it will expand to, the temporary wound cavity collapses and the bullet continues on making a much smaller permanent wound. So a .308 bullet expands to a maximum diameter of .45. So while it is in the process of expanding, it is making a temporary wound cavity many, many times it’s size. As soon as the bullet stops expanding however, it continues on making a .45” hole until it exits or loses all velocity. I’m interested in that energy dump. At what point is there not enough energy to cause rapid death? At what point is there not enough hydrostatic shock? At what point is there not enough of a temporary wound channel to create enough tissue damage to kill quickly or almost instantly? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet lethality: energy and velocity
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