I think what happened is the wife took the revolver out, shot all of the rounds, and then when she tried to push the ejector rod it just wouldn't budge. Then she brought it home to me, where I've all my life have just shot pistols or rifles and never revolvers, and when I tried it I too couldn't get it budged - so we both assumed it was jammed or we used wrong ammo. So then it sat there in one of our 16 ammo cases "take it down to the gun shop" todo list - and that was 13 months ago. I'm now trying to get this all figured out for her birthday. When I picked it up this morning, the revolver is so heavy I just figured it was live rounds so was super careful - and was trained to just always assume rounds are live to some extent.
Even though this revolver says "Luger" all over it, can I use any 9mm cartridge or do I need to explicitly buy "Lugers" for them to fit properly in here?
The 9mm rounds I had purchased 3,000 of them as I love running through them on my Glocks, so had just assumed they would work for the Ruger. I keep promising to take a photo of the rounds, and I'll post that tomorrow morning my time for clarity in case anyone comes across this later and finds value in the discussion.
I really appreciate everyone's quick feedback. This has been super helpful and saved me an embarrassing trip to my local gunsmith. He has enough troubles with me for my AR-10s, that I think this would make him laugh even more.