Yes.
You will have to state whether it is a rifle or handgun to get an answer.
yes
Rifle and bullet (The bullet is dependent on the rifle to accomplish its purpose)
If the gun is stationary before the shot, then the momentum of the gun and the momentum of the bullet are equal and opposite after the shot.
When a bullet is fired from a rifle or pistol, it has markings impressed on it from being pushed through the rifling in the barrel. These marks, known as striations, are unique to each gun, much as fingerprints are unique. The striations made by two different rifles will NOT be the same. Similar, but under a microscope, different.
Bren gun, Lewis gun, SMLE rifle
Gun can refer to a long gun or a hand gun. A rifle is very particular. It has to have grooved barrel which spin the bullet when it is going down the barrel. This spin action on the bullet makes it more accurate.
The process of "sighting in a rifle" means to adjust the rifle's sights so that the bullet fired from the gun goes where the sights are pointing. One would normally mount the gun in a vice, fire a shot at a target set at a fixed distance away and then adjust the settings on the sites so that the cross hairs intersect over the hole made by the bullet.
Yes, a bullet can be shot with no gun. A bullet does not need a lot of speed to kill someone. Say someone threw a bullet to the ground, it might bounce back up and hit you, thus causing you to die or be injured
Affix the gun to a target. Load the bullet into a cartridge. Load the cartridge into a second gun. Aim carefully, squeeze the trigger. If you have done everything right, you will have shot the gun with a bullet.
Rossi is coming close with a single shot rifle ( the wizard) with interchangable barrels. They boast 21 different combos and include shotguns. As far as a gun that can shoot everything from a 17 HMR to a 50 caliber bullet the answer is no.
Because that was the way it was loaded into the gun, shot charge, bullet charge, shot charge, bullet charge. If you load it that way, it will shoot that way.