I have had a Sheridan CO2 5mm blue streak come back after more than 40 years. It needs wood resanded, lightly, a little rust on trigger guard, and it will not hold CO2. Actually it is in great shape considering that it was found in closet at an estate sale with my name on it and a tag saying return to. Does any one make a repair kit for this air gun. It was a long time ago but my guess is the guy who borrowed it dry fired it. I am also looking for a manual. If I can get it up and running it might be trade bait, but right now it is a project.
Hodr
I seem to remember head shooting large mountain quil with it before I loaned it out.