Hope you are just kidding about sliding a Gold Metal into the chamber, and drawing any conclusions about the gun based on that.

Send it to Buck. Needs to be cleaned and inspected, and, inspite of what you may have seen here before, an old toothbrush and a rag are NOT the proper tools for that. You have pretty much outed yourself as not having the proper tools or technique do answer the questions you are asking. Good. Send it to someone who does, and take his advice.

Good luck.

Best,
Ted