Oh, my! Nice rifle but now you're gonna have to paint it with truck-box liner just to keep up with the Tac crowd. (Jan sez don't you dare and has offered to rescue it!)
It is a conversion from an original Fucile 91 (Rifle 91) into 91/24 TS. The TS is Truppi Speziali, which is Special Troops. Nowadays we would call them Special Forces although not quite the same thing: more like Pioneers, Engineers, Artillery, truck-mounted troops and so forth, anyone who didn't have room to carry one with a 31-inch barrel. So you can honestly say that you have a genuine Fascist Special Forces rifle! There will be a big rebuild mark on the Butt that lets you know where the work was done and what year it was done in.... in two different systems. It will be marked with the normal date (example 1937) but it will ALSO be marked with the Fascist date (in this example, XV) because the Fascist period in Italy was the Refounded Roman Empire. The Refounding took place during Mussolini's March on Rome in 1922.
There is absolutely NOTHING wrong with a Carcano, friend, and you have a nice one with a big chunk of history behind it. Like as not it served in the First World War on OUR side (when Italy was our staunch Ally, standing up to the hordes of Austrian Imperialism and Kaiserism) and in the Second War AGAINST us (when Italy was bunch of Fascist buffoons and tools of the Nazis). That is wartime propaganda: the Italians fought well in BOTH wars and the Carcanos were the same ones, by and large: only the propaganda had changed.
They are a FINE light rifle but they need a special-diameter bullet. Trade-Ex HAS bullets and brass, even Lee makes the dies, so you have no troubles there. I would suggest a fairly-quick powder (nothing slower than 3031) for this shorty; you want the charge to burn IN the barrel, not in the air. This REALLY reduces flash and report, gives you a NICE, DOCILE rifle. You MIGHT get by with flatbase 140s, too; I have couple that like them. And you have 3 copies of the old-time BRASS clip: very pretty and they can be used hundreds of times, also comparatively scarce. That original ammo is DEFINITELY collection stuff. SOLENITE is the type or powder they used. The carton is marked "For Rifles and Machineguns". This rifle WILL flatten Bambi or Benny if you have tags.
You have scored yourself a Very Nice Toy at a bargain-basement price. Go buy a 6/49 ticket!
I like it!