The Carcano loads with an en-bloc clip, like the M-95 Steyr-Mannlicher and Gew 88 Commission rifle. When the rounds are expended, the clip falls out the bottom hole.
The crossed rifles marking on the first rifle indicates the rifle was found to have especially excellent accuracy.
Vectors' rifle is a M-38. Most you'll see are the 7.35mm rifles sent to Finland and imported in the 60s. Ammo's damn near unavailable and costs an arm and a leg. And the .299 bullets are hard to find too. Being 6.5, it's marginally rarer, looks great, and should shoot very well, especially since it's stamped with the accuracy marking.
Remember, .268 bullets, not .264 diameter.
Lionking, you are similarly lucky. That's a (Fabrica d'Armes) Terni (FAT) M-91/41 rifle, the easiest to shoot of all the Carcanos, because the battle-zero with the sight flipped all the way forward, is only 200m.
Now for the big caveat. BURY the front sight in the rear notch, with the point all the way down in there, and then line your target up between the top edges of the rear notch.
So yeah, using a regular sight picture, they shoot quite a bit high.
And I love my 1917 Terni Novatuno long rifle. Gorgeous, sleek, low recoil, and accurate as hell.