No
Yes. You can have a bullet that is largely external to the barrel of the gun. An example of this would be a harpoon, although the harpoon-gun is still bigger than the harpoon but the principle makes the possibility exist. so basicaly no!!!
From an engineering perspective Yes, it is possible. It would take some special designing and some custom work but it is perfectly imaginable.
It's the recoil from the force of the bullet being fired. The gun powder pushes the bullet forward and also equally pushes the gun back into your hand.
The gun weighs MUCH more than the bullet.
The 30-06 ( say thirty ought six) fires a bullet that is 7.62 mm in diameter. The 7mm fires a bullet this is, well...... 7mm. 30-06 has a bigger bullet. The size of the GUN can- and does- vary. BTW- catridges such as the 7mm MAGNUM will have greater energy than a 30-06. So- what is your definition of bigger?
.45 ACP
Newton said "For every action, there is an equal and opposite reaction." The action is pushing the bullet in one direction. Reaction is the gun being pushed in the other. The energy is speed times mass. The gun masses much more than the bullet, and so will move proportionately slower than the bullet. Which is a very good thing- or the recoil of the gun would kill the shooter.
No. The recoil from such a gun would kill you. action and reaction. Bullet would stand still, gun would move.
Which gun?
There is no 32mm handgun. That would fire a bullet more than an inch in diameter.
The bore of a gun relates to the diameter of the hole in the barrel - and in turn the diameter of the bullet the gun can fire.
No. Yes. All you have to do is strike the bullet's primer with a sharp corner of the gun.
cocking a gun is when you pull the slide of a gun back and forwards once to get a bullet into the chamber to fire
The short answer is no. The longer answer is, it might be possible to get it to fire, but you should never use any ammunition in a gun other than what it was designed to use. It is possible to damage the gun or get hurt yourself.