Posted this earlier in a different spot by accident.
Was on a facebook group trying to find out the going rate for a 450. A guy said he had a 45 that he'd part with. Sent me this picture.
We talked back and forth for a while, and I ended up getting it for 55$ including shipping. Got it a couple days ago, and it's good and tight, and looks better in person. Even came with the original wrench.
Now I can keep my smokeless lube in my 450, and black powder lube in this one!