Recoil from the explosion of the charge.
The backward jerk experienced by a gunman while firing a gun is due to the recoil force generated when the bullet is expelled from the barrel. This force is a physical reaction to Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. The recoil force pushes the firearm and the gunman in the opposite direction of the bullet's trajectory.
It's Newton's law that every action has an equal and opposite reaction. The bullet goes away from the person firing. It has a very small mass but a very high speed. The opposite reaction is the gun moving backwards, but since its mass is much higher than the bullet, its speed in much lower.
Firing Pin
The total momentum of the bullet and the gun before firing is zero, as the gun and the bullet are at rest. Momentum is the product of mass and velocity, and since both the gun and the bullet are not moving, their momentum is zero.
The term "magic bullet" refers to the bullet found on the gurney that JFK was on when he died. It was next to his head. It just seemed to appear and for the conspiracy types it proves there was another gunman other than Oswald.
You compare the rifling marks on the bullet to the rifling in the barrel. You can also compare the firing pin mark on the primer to the firing pin on the gun.
Most of the time there is a firing pin, which hits the back of a bullet when the trigger is pulled. The firing pin hits the back of the bullet and ignites the gunpowder inside of the bullet. The bullet then becomes a small unguided rocket and hits something in the direction the gun was aimed at.
Firing pin is what strikes the back end of bullet igniting propellant
Exactly the same as whatever it was before firing. If the loaded gun was not movingbefore the trigger was pulled, then the total momentum of the gun and bullet afterfiring add up to zero.
A bullet from a handgun can travel, on average, about a mile.
Abraham Lincoln was fatally wounded by a bullet to the back of his skull. The gunman and assailant was John Wilkes Booth.