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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Needed Energy for killing.... is it a myth??
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<blockquote data-quote="RBrowning" data-source="post: 29593" data-attributes="member: 412"><p>I too have my doubts about any one number telling you if you have enough bullet for the job. Some think that 1000 ft*lb is required, others feel comfortable with 800. But I have never heard anyone say that a 357 magnum pistol isn't up to the job and they only produce a little over 400 ft lbs at 50 yards. </p><p></p><p>I wonder if anyone ever did a test to see how much energy you can expend into a deer's chest? Sort of like an Izod impact test to see how tough steel is. I think a lot of variables would come out as more important than currently thought, such as impact velocity as Shakey mentioned. But once you punch through the deer, any remaining energy is wasted on the surroundings. So if a 308 will pass through a deers chest at X yards, why would you need a 300WinMag at double the energy? Do you like digging big holes? Now if you are shooting the 300WM at a range where the energy level is back down to the 308 level, that is great. But so many of the hunters I know carry 300WM's and would never consider shooting over 100 yards. I don't think the deer is going to be any more dead with a 300WM than with a 243 at that range, but I'll bet that the shooter isn't as likely to be as good with it.</p><p></p><p>I think that we may have gotten ourselves into a vicious circle. Someone speculates that X ft*lb would work. The next guy doesn't want to get caught short handed and so he pads his number 10-20% when asked what should be used. After a few of these we may where we are today. Nobody knows, but everybody comes up with a number.</p></blockquote><p></p>
[QUOTE="RBrowning, post: 29593, member: 412"] I too have my doubts about any one number telling you if you have enough bullet for the job. Some think that 1000 ft*lb is required, others feel comfortable with 800. But I have never heard anyone say that a 357 magnum pistol isn't up to the job and they only produce a little over 400 ft lbs at 50 yards. I wonder if anyone ever did a test to see how much energy you can expend into a deer's chest? Sort of like an Izod impact test to see how tough steel is. I think a lot of variables would come out as more important than currently thought, such as impact velocity as Shakey mentioned. But once you punch through the deer, any remaining energy is wasted on the surroundings. So if a 308 will pass through a deers chest at X yards, why would you need a 300WinMag at double the energy? Do you like digging big holes? Now if you are shooting the 300WM at a range where the energy level is back down to the 308 level, that is great. But so many of the hunters I know carry 300WM's and would never consider shooting over 100 yards. I don't think the deer is going to be any more dead with a 300WM than with a 243 at that range, but I'll bet that the shooter isn't as likely to be as good with it. I think that we may have gotten ourselves into a vicious circle. Someone speculates that X ft*lb would work. The next guy doesn't want to get caught short handed and so he pads his number 10-20% when asked what should be used. After a few of these we may where we are today. Nobody knows, but everybody comes up with a number. [/QUOTE]
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Needed Energy for killing.... is it a myth??
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