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 I have followed this thread rather closely, and after having had this wisdom put into good order, how does one put all this valuable information to practical use?  rogerOld age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone.. | |||
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Good question, the average person doesn't  _____________________________________________________ A 9mm may expand to a larger diameter, but a 45 ain't going to shrink Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing had happened. - Winston Churchill | |||
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One example???? You're just arguing for the sake of arguing, aren't you? Enough already! _________________________ Glenn | |||
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Ha! One doesn't, that's how. For me, it all started when eny asked the question "What does energy mean to you?" and I set out to answer it from my perspective, according to what I have learned. It's just my observation. For the average forum member, it doesn't have to mean anything more than that. Or even for the above average forum member or the below average forum member. Or for the smart member, dumb member and everything else in between. It's just for those who might find it interesting, for whatever reason. _________________________ Glenn | |||
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No doubt the work of Duncan McPherson was/is important. His qualifications and knowledge base is impressive to say the least. I just find it perplexing and puzzling as to why someone would apparently think that what little I've discussed and shown here would pose a challenge to his work. I mean, gee whiz! _________________________ Glenn | |||
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I got in on this late, but as I see it energy and velocity are simply a measurements--of course they are related--there is a direct correlation between velocity and energy. By themselves they are not as valuable as when using them for comparisons. For example, the muzzle energy of a .243 shooting a 100 grain bullet is almost the same as a .30-30 shooting a 150 grain bullet. So, does that mean the .30-30 and the .243 are equals when it comes to, say, deer hunting? NO! Now, compare their energy at 200 yards: The .243 has an energy of 1332 ft lbs while the .30-30 only has 858 ft lbs. Which would you rather hunt deer with if there is a good possibility that you'll get a shot at 200 yds. The lowly energy measurement is a simple, quick way of comparing the ability of a .243 and .30-30 to kill a deer at 200 yards. Is it the best comparison measurement? I doubt it, but it does help me. Red C. Everything I say is fully substantiated by my own opinion. | |||
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Go back to the First post Vapo made on Page 1. Then do a total Mental Erase of the rest - especially the part about Human Wound Studies. | |||
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Nope not at all. Have you read MacPhearsons work? In some media such as armor "energy" is important to the calculation, but as he explans not in tissuse or ballistics geleitin. The higher the sectional density the lower the drag _____________________________________________________ A 9mm may expand to a larger diameter, but a 45 ain't going to shrink Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing had happened. - Winston Churchill | |||
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 Right back at ya. In a nutshell, it depends on the said 45 caliber bullet. (and the 22 slug as well.) With a 300 grain bullet, maybe, but youd better be at point blank with that shoulder shot and even that is on shaky grounds at best. Which begs the question, could the 22 cal penetrate said shoulder at point blank with a fmj?  Hmm..The 22 cal bullet will generate 1582 ftlbs while a 300 gn 45 will make less. A bit over 1300 ft lbs. However, a 500 gn slug, which will certianly get the job done produces 2195 ft lbs of energy.. Considerably more than the varmint load. And the biggest difference is that the 500 gn slug will retain its "energy" against the resistance of the shoulder where the itty bity 55 grainer falls flat. However, having said all that. Your point about the exception of 220 swift type of "energy" is well taken. In most other cases the general rules of thumb apply.. The way I see it, the usage of ft lbs as a guideline for applicable rounds for specific species was very relevant when there were a plethora of rather anemic rounds on the market. Nowadays such anemic rounds are not so common, so it doesnt matter so much. Actualy your example of a 45 cal on a Bison shoulder is a good example of the question of energy relevance and how much is enough. We could go back and forth on that one alone all day long. But the proof is in the pudding.. AK-47 The only Communist Idea that Liberals don't like. | |||
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Ah, I left out the 45 cal bullet weight which is 360 grain. More like how much momentum is left _____________________________________________________ A 9mm may expand to a larger diameter, but a 45 ain't going to shrink Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing had happened. - Winston Churchill | |||
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When a bullet fragments, so does the energy. AK-47 The only Communist Idea that Liberals don't like. | |||
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So does the momentum, that's why we don't shoot larhe game with #9 shot. But by all means make them both NON Fragmenting _____________________________________________________ A 9mm may expand to a larger diameter, but a 45 ain't going to shrink Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing had happened. - Winston Churchill | |||
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To expand upon what I said: It's like stating that 2+9 = 11 and saying that it therefore can't be 5+6. Yes, what I posted works (to borrow a phrase) 100 percent of the time because it's simple math and physics principles involved. I could give another example or a thousand examples, or you could give me examples, but what's the point? Your mind is already made up that I'm wrong and nothing I can do will change it. And guess what? I frankly don't care! _________________________ Glenn | |||
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Does it work 100% of the time in tissue. I beleive we are talking about hunting and shooting biological beings. Yes "energy" is used to calculate penetration through some media, such as military armor, but not tissue and that is my point _____________________________________________________ A 9mm may expand to a larger diameter, but a 45 ain't going to shrink Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing had happened. - Winston Churchill | |||
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