Yes a gun can be fired under water.
You can look it up on YouTube the're plenty of videos showing it.
Actually, yes you can. It will affect the range of of the bullet and the lethality, and may possibly cause the gun to malfuction, but it can be fired underwater.
I used gelatin or a large water tank.
They are shells fired from a gun with a bore of just under 1.5 inches.
A bullet fired from a gun
Well, most guns are waterproof in one sense of the word- they do not dissolve in water. Can it be FIRED underwater? Yes- but whether it can be SAFELY fired underwater is another matter. Guns that are fired underwater are subjected to pressures that they were not designed for, and the bullets go only a short distance. If a gun has been submerged under water, it should be drained, dried, and lubricated.
A round is loaded into a gun. The gun is then cocked and then fired.
No
This gun is a Rifle
A gun recoils when fired due to the need to eject the casing and to recycle the pent up gas
It doesn't.
A machine gun uses energy from the fired cartridge to operate the mechanism to unload the fired catridge, and to load a fresh cartridge- which is fired, and repeats the cycle.
Yes, but only if the gun is not fired. If the gun you see on the big screen is fired, then it isn't an airsoft gun, it is a prop gun, or a cap firing gun.