As a very general rule, bullets are propelled by burning powder, pellets by air or C02
Bullets and pellets are both terms for the actual paint ball. Bullet is incorrect, but pellet does mean "small ball."
A pellet rifle has no firing pin. It also can not fire a bullet or gunpowder. It can not be made to do so either. The pellet has no charge (casing like a bullet) it just a pellet. However pellet rifles can be just as deadly as a real firearm. They use Air or C02 to project the pellet downrange. Some Pellet rifles are used for hunting, others for target practice. The Major difference between a firearm and an air rifle, is Gunpowder is use in Firearms and Air or C02 is used in Air rifles.
None. A bullet is a bullet, regardless of what material it's made from.
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.
A regular pistol is a firearm. It uses gunpowder to fire a bullet. An air pistol uses compressed air to fire a pellet with less velocity than a firearm.
diameter
No. Even if it would fit in the chamber, there is no firing pin on a pellet gun.
Bullet for my Valentine is a band. My bloody valentine is a movie
It can't use a regular cartridge, no.
Air rifles use compressed air or C02 to propel the BB or pellet. They do not use gunpowder. Their is no bullet shell and bullet just the BB or pellet.
.001 inches. Makes a difference depending on what you are shooting, how old the barrel is, etc..
A .025 has a larger diameter than the .020