Main Discussion Area > English Warbow
Warbow FPS?
Josh B:
[quote author=Del the cat link=topic=39000.msg580674#msg580674 date=1383671086
The shot can't possibly hit you with any more force that the recoil of the gun (according to that nice Mr Newton)
Del
[/quote]
On the face of it, newtons law would seem that simple. And if you figure in all the applicable data it still stands. However you are overlooking many important variables in your formula. Just to name a few, weight of the firearm, energy bled off to cycle action(autoloaders), ergonomics of the firearm just to name a few. These factors are all important to the equation. I will use the .50 bmg as an example as its the most powerful caliber I've shot. The recoil imparted to the shooter in a thirty pound rifle is roughly 80 ftlbs, admittedly, that's over four times the energy to the shooter than most people can stand. At the other end however, the .50 bmg is delivering well over 12,000 ftlbs of energy. That will not only knock you down, but usually scatters you for several yards whether you are wearing body armor or not. So its ridiculous to even try to compare firearms to bows. Oh and to the .25 acp energy...I can tell you from personal experience that a .22 lr in the thigh will knock your leg out from under you as if it was hit with sledgehammer. Josh
Josh B:
I had to take a break for supper. So to continue. Obviously that full 12000 ftlbs is not transferred to a soft target like the human body. 90 percent or better is carried on through with the projectile. Also the more dense bone or more resistant materials struck equal more energy transfer. ADB has mentioned that he hasn't knocked a deer down. Most of the time that will be the case with well placed shots. The bullet only contacts soft tissue and light rib bones. Put the same bullet through the shoulder blades and spine...its a whole different result. But as has been mentioned this is pretty much irrelevant to archery. KE is pretty much a non factor with arrows so I'll put the brakes on here and go on my merry way. Josh
kevinsmith5:
Ok, in the 15-16th century there appears to have only been about 5% of an army that had plate armor and not maille or jacks....so this seems to apply to some comments made here.
http://www.currentmiddleages.org/artsci/docs/Champ_Bane_Archery-Testing.pdf
Del the cat:
--- Quote from: kevinsmith5 on November 06, 2013, 08:09:15 am ---Ok, in the 15-16th century there appears to have only been about 5% of an army that had plate armor and not maille or jacks....so this seems to apply to some comments made here.
http://www.currentmiddleages.org/artsci/docs/Champ_Bane_Archery-Testing.pdf
--- End quote ---
And presumably even fewer horses...
Del
Atlatlista:
Right. And these are well-trained horses that we're dealing with, but you probably don't even have to inflict that much of a wound on them to lead to behavior that seriously disrupts whatever the rider has in mind. The horses on my farm bolt if they hear a loud noise, and they're pretty docile plow horses.
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