![]() ![]() ![]() ![]() Which one would you rather have when facing down an angry grizzly bear? For me, it sure wouldn’t be the. 22-250 rifle round loaded to spec will create a higher muzzle energy number than some loads for the. Yup, muzzle energy has no reflection on the lethality of one round over another. Fortunately, once the energies are calculated, you can file them away in the useless information bin. Supposedly it’s not enough, even though it kills the animal door mouse dead.Įnergy, as such, can not be measured. By the way, a 420-grain bullet at 1,300 fps “generates,” or rather calculates out to, a whopping 1,576 ft-lbs. Yet, surely my cartridge is adequate despite the “inadequate” muzzle energy. 475 Linebaugh loaded with a 420-grain bullet at 1,300 fps, and I have enough penetration to reach the brain and dispatch the elephant? Clearly, this load does not meet my colleagues’ minimum requirement in one of the two criteria. So, having said that, what if I shoot an elephant with a frontal brain shot with a revolver in. Muzzle energy, as a determinant of lethality, is an exercise in futility. The muzzle energy is calculated to be approximately 888 ft-lbs. 500 JRH, loaded by Buffalo Bore at an advertised 950 fps at the muzzle. This hole, same bull elk, and also an exit hole in the ribcage, was produced by a 440-grain wide, flat-nosed hardcast bullet in. And, in the cases where they have not met this arbitrary minimum, it has been noted that the cartridges in question have not worked very well. Now, in their significant experience hunting elephant, their summations have held true, as most of the cartridges utilized on elephant have met this minimum requirement. I have not killed an elephant with a revolver (nor with a rifle), so I defer to those with this experience. Seems like everyone is in on the sham! The terms “energy,” “energy dump,” “kinetic energy,” “muzzle energy,” et al, are tossed around with utter, complete, and unfounded confidence by their proponents-until forced to explain.Ī number of African big-game hunters I have been in contact with and who have killed numerous elephants in their days often cite that a minimum safe (effective) cartridge for hunting elephant must have a 400-grain bullet and 5,000 ft-lbs of muzzle energy. Yet, even many game laws call for muzzle energy minimums for specified game. Really press him, and he will accuse you of having a poor understanding of terminal ballistics. Impact velocity was estimated to be 2,600 fps at the range it was shot, which calculates out to approximately 2,700 ft-lbs of muzzle energy.Īsk any proponent of energy to define how it enables a bullet to kill game, and he will respond in vague terms. But what is energy? Is it definable? Is it measurable? This hole in the ribcage of a bull elk was produced by a 180-grain TSX from a. Energy has been utilized to rate the lethality of cartridges/loads for some time now. Gun magazine articles talk endlessly about the energy of hunting cartridges, and books about hunting are filled with references to energy as a determinant of effectiveness. After all, ammo boxes are stamped with energy figures, and ammunition retail websites offer ballistic comparisons between cartridges, with muzzle energy as the comparative figure. The fact that I am referring to energy as a myth flies in the face of conventional wisdom. According to Prasac, when conventional wisdom is repeated so often as to become law, rarely is that piece of wisdom challenged. In his new book, Big-Bore Revolvers, Max Prasac looks at terminal ballistics from the perspective of the big-bore revolver, and dispenses some of the myths he says are frequently perpetuated by the hunting/gun magazine industry as a whole. The topic of terminal ballistics is normally addressed from the perspective of rifle ballistics. ![]()
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