Dirty, broken or worn extractor/ ejector. Take it to a gunsmith.
can you use any kind of an 22 shell like an long or short shell in an 22 gun
If you want a lever get the Marlin, if you want a pump get the Remington, if however you want a semi-auto get a Ruger.
you load the gun in the buttstock
You can find a bolt for the Marlin 22 through many gun catalogs including the Numrich catalog. You might also find the bolt at most gunsmith shops or gun repair businesses.
The value of that gun would be about anywhere from 150 to 200.
gun parts corp . com
We need the model.
Numrich gun parts, look under Marlin/Glenfield parts list
Gun shop, gun show, want ad, Brownell's
I would start my search at E-gun parts.com(Numrich Gun Parts Corp.).
dick williams gun shop
If the gun is in perfect shape it is worth not more than $100