That was pretty much bare bones, not a lot of parts, put a rabbit on the table kind of rifle Winchester made during the depression years. It's a solid and durable little rifle. You've already made sure the barrel is clear. If the bolt works smoothly, about the only thing to check might be the area around the chamber to make sure someone hasn't dry-fired the snot out of it. Make sure the screws holding the barrel/receiver, and stock are tight. Beyond that, the wood might be getting dry by now, a feller might rub some ballistol into the wood and onto the metal for preservation. Shoot it, and see how it does. You might stick to regular velocity .22's and leave the Stingers for more modern rifles, but that would just be a personal thing.
