Okay, I'm up now and I have fresh pictures, thanks for keeping the thread going all night, glad to see there's still some real niggas left on /k/.

>>64046716
Here's a pic of the red box, it seems to have an 8.1 and nothing else. Also all of your question marked guesses on which barrel is which are correct.

I'm gonna say your guess of 1733g being the barrel weight is correct, I threw it on my little kitchen scale and it said 1725 grams, on a cheap amazonium scale id say 8 grams on nearly 4 lbs is within margin of error.

>>64046728
>>64046773
This I'm really not sure about, because those stamps clearly look more like S than 2, but they're mirrored S, I do think you're right that they are contiguous with the RM, those are much sloppier stamps than the rest of them, not as nicely laid out and with strange font. What is a guild gun?

>>64046798
Pretty sure it's a 27, the 7 stamps are at a funny angle that makes them look like 1s but theres a light top line on both of them.