While it varies somewhat from one design to another, they all use compressed air (or another gas) to push the pellet out of the barrel at high speed. Some have a piston that is pushed by a spring, compressing the air and releasing it at the end of the stroke. Some use an air pump that compresses air into a tank, and releases the air when the trigger is pulled.
It all depends on who made the air rifle and the power plant that the rifle uses.
please state the model number and the condition of the rifle. Is this a 22 rim-fire or air rifle?
No they won't fit. If you force it, it will ruin the rifle.
What condition is it in...........
Depends on the rifle. Accurately? About 50 yards max.
Some air rifles were available in .22 caliber.
The Olympic air pistol and air rifle events use a .177 caliber pellet. The biathlon (skiing and shooting) uses a .22 caliber rim fire rifle.
Not usually. There are several factors involved besides the spring, but the .22 will usually use a stronger spring to propel the heavier pellet.
Best left to a professional.
air rifle
The model 100 is a .177 caliber air rifle. The model 101 is a .22 Caliber rifle. Basically the same air rifle just different calibers.
A .22 air rifle can be used to hunt small game such as rabbits, squirrels, and birds. It is important to check local hunting regulations and use appropriate ammunition for ethical and humane hunting.