@COUGAR SECURITY a couple of things for you here now that I am off a phone and have a keyboard.
First, yes, Buffalowinter has been summoned and he knows these guns really well.
Second, do not try and cast a chamber in wax. It's not going to work. There are casting alloys for this purpose, but if it's not something you do every day... don't try it! To determine the caliber, take gun to a gunsmith or have a museum or expert look at it. Determining a caliber is something that most gunsmiths won't even charge you for... it's a safety thing and also something that many (not all) gunsmiths do as a community service. But under no circumstances pour wax or paraffin or some other concoction into the chamber. You will create a gooey mess and the gun will then have to go to a gunsmith anyway...
Third, the stock crack is probably repairable by a good gunsmith IF noone has attempted to fix it before. Pouring in glue concoctions often makes an easily fixable crack into a totally un-repairable crack by contaminating the mating surfaces. If not expert in stock repair... don't try it.
Last, a couple of suggestions for site/board etiquette. And some of these apply to anyone visiting Vintage and seeking info. First, please don't type in all capital letters. It's hard to read. And in the Internet world, it is considered 'Shouting..." and only used for emphasis. Please turn Cap Lock off. And also, when you upload images, use the "Post Full Image" button to make your thumbnails full-size. It saves the folks who are looking at your pictures from having to do it!
And as I mentioned, when seeking information on a gun, part, etc. Detailed photos help. But also photos of any markings, no matter how small. Little characters of Lions and Crowns and Thistles may look irrelevant... but those proofmarks can tell where a gun was made, tested and even in what year. Seemingly random numbers are often lot numbers, partial serial numbers or part numbers that can narrow something down. There is a ton of expertise here and 'someone' is going to almost certainly zero in on what gun you have. I've never seen this place stumped yet. But posting as much info up front helps!
Hope this helps until we get our Swiss experts in here.
Cheers,
Sirhr
