Many types. First, muzzle loaders do not use cartridge casings. Only autoloading firearms automatically eject a fired casing. Revolvers, and lever action, bolt action, and pump action firearms require a specific action by the shooter to eject a fired casing, as do single shot and double barreled shotguns.
See a gunsmith.
If it's doing it regularly, it may be an extractor problem.
Possible causes include, ammunition, magazine, spring,etc..
1944 and 1945 cents were made from recycled copper shell casings. 1944 and 1945 nickels were made from a combination of silver, copper, and manganese to free up nickel for use in weapons.
If you are referring to casings like bullet casings after the bullet has been discharged, then the answer is "No." The entire Pellet is discharged from the gun when it is fired.
An expended shell casing is the empty metal container left behind after a bullet is fired from a gun. It holds the primer, gunpowder, and projectile before being shot. Shell casings are often collected at crime scenes as evidence to help identify the type of weapon used.
The difference between the two is which side the ejection port is. Right handed shotguns eject right...so it doesn't eject into your face. Left hand, for left handers, ejects left...again, so the casings don't eject into their face.
Impossible to answer without knowing the type of gun.
The gun does not always cycle. It also will not always eject the shell. These can both be potentially dangerous situations.
It means that the shell will eject on the left side not the right. Same way with rifles.
Shell-ejecting airsoft guns tend to eject their shells using a spring loaded system. once the bolt, or slide is drawn back after firing, the spring will force the spent shell out of the gun
Its quite simple as that it ejects the shotgun shell out of the gun after it has been fired but this depends on the type. A double or single barrel shotgun would only eject the shells when u hit the release mechanism to reveal your side of the barrel then they eject out.On any other type shot gun where u load 8 or have a clip they generally fling out the side when re-cocked or if automatic they do this automatically. Hope i helped