Originally posted by TrueBrit
reply to post by johngalt722
A short answer, "Shrapnel, oh my god, shrapnel!".
I have to ask, never having fired a firearm in my whole life, why do gun manufacturers make weapons that jump THAT much when fired? Surely that makes
for a less user friendly device? And also, I hear alot on this site about how careful people are with thier weapons, but I would like to know how come
people are allowed to even hold a firearm without having been trained to hold them under recoil? Surely if they are gripping the thing correctly, then
they shouldnt be able to drop them?
It’s called conservation of momentum. There is no way to push lead down range at speed without kicking you back. When you want to push a specified
weight out the end of a barrel at specified speed, the thing that is accelerating that projectile will be accelerated an equal but opposite
If the gun and your torso had a combined weight of 100LB.
To push a 750 gn projectile at 2460 FPS.
Lets do the math.
The person’s torso would be heading backward at a little over two and a half feet per second after they fire the gun.
The easiest way to simulate it for a person that has never fired a gun is walking at a full gait and without anticipating it, just lock your next leg
solid that hits the floor and try to stop in place. Your momentum will carry you forward. Your back leg will come up off the floor as your body is
carried over your braced leg by the momentum. That is what it’s like getting hit by a recoil of a gun. It’s almost like you are trying to dead
stop from a full speed walk, just backwards.
Once you learn what it is like to be accelerated to full speed reverse while standing still, then you quickly learn how to deal with it.
For the bigger ones you just have to do the back step for a step or two to dissipate the momentum.
The other factor is how sharp the jolt is to your shoulder. The lighter the firearm, the faster it will impact your shoulder, all be it with less
weight. Basically, the momentum will be transferred to you faster. A heavier firearm will hit your shoulder at a slower speed, but with more weight
behind it. Slower transfer of momentum. Usually it is a lot less painful to shoot a heavier weapon with the same projectile.
The best teaching method is real world. Put a single shell in the gun at a time and let them try. Start out with the lower power shells and work you
way up to the bigger ones. If you are using a 12 gauge shotgun, get low power target shells first. Once that softens them up, then go to the general
purpose shells. Then go to the 9 pellet 00 buck, slugs, and magnum 15 pellet 00 buck.
A 3 inch 15 pellet 00 buck at 1200FPS will hit you with a 142.5LbFPS recoil. A little over half of a T REX.
If you have shot plenty of 10 gauge shotguns with high power loads, and the like, then you have nothing to fear from a T REX.
And some people handle things a bit different with firing a big gun for the first time. The sheer shock to the system has funny effects. You have to
anticipate them doing stupid things at first. The best way to get their system acclimated is immersion therapy. AKA shooting enough rounds down range
until they get use to it. As I said, the best teaching method is real world. That is why they have shooting ranges! For people to learn how to
edit on 4-1-2013 by Mr Tranny because: (no reason given)