Originally Posted by liltank
That is a pretty good read. Most of the loads are 2000fps or less. I wonder if the speed kept down is for less deflection. It makes you wonder how they shot prone and knocked Buffalo down with 45-70's and larger with good effect at long range?
I guess it is the theory of "a big hammer is always better.
Physics is physics and the laws of physics do not bend.
The name of the game is momentum and momentum is defined a P(momentum) = m (mass) v (velocity). a 200 gr bullet traveling at 4000 fps has the same momentum as a 400 gr bullet travleing at 2000 fps. All else being equal, it takes the same amount of force to deflect either bullet. The key phrase being "all else being equal". There are some other physical principals that complicate the picture. Namely, stability. If a bullet begins to wobble or tumble, then other "forces" begin to work on it and its fight path will be affected.
If a bullet reamains stable, it would take a great deal of force to deflect it significantly.
One issue with high velocity is a greater tendency to deform the bullet. Smaller, faster objects will deform more readily than larger and slower objects. This is why in many cases, a slower bullet will penetrate more than a faster bullet, the reason being the faster bullet expands to a greater frontal area and encounters much more resisitance. It also does much more damage through the channel that it does penetrate.
If I were to shoot a 200 grain bullet at 3000 fps through say10-20 ft of bushes with twigs and small branches I dont think the bullet would be greatly deflected by the time it reaches the far side of the bushes. Depending on its construction, it might open to some degree. It might also begin to tumble, but I think it would probably hit a 12" target on the far side of the bushes.
Anyway, my curiosity is now peaked. I will have to give it a try some time