Personally I would give a fxxx in such a situation on such order and you can imagine that enough stuff was hidden somewhere. Under the russians it was extrem critical because you would go to siberia for sure.
Coming back to the carcanos its an austrian phenomenum. Lots of carcanos ending in the alps when war endet and they had enough time to hide them in barns and similar buildings before allied occupation troops arive. Shotguns for hunting were maybe allow there around 1950 and after 1955 they were able to do what they want.
What they were realy wanting was the Mannlicher Schönauer M 1903 in 6,5x54 because this was THE rifle for the mountain hunter. If you can't get it or don't had the money to buy after 1955 because it was an expensive thing you maybe had this caracano carbine in the barn from 1945 sometimes out for poaching when the coast is clear.
After the post war years your local gunmaker was happy to open up his shop again and labour was cheap so he make you something similar light and handy like the little Schönauer Stutzen.
When times became better you bought a new rifle and the old carcano stands than in the old
wardrobe.