You'll need a 'en boc loading device' not a stripper clip to fire in any mode other than single shot and have to tickle that in to boot.
There are two calibers, 6.5x52mm Carcano and 7.35 (something) mm. I have the first model or type, 1891 rifle in 6.5mm. The rifle barrel is about 30 inches long. The carbine version is obviously shorter.
By the way, if you reload, the bullet diameter is .268 inch, not .264 inch like the rest of the 6.5mm rifles.
It is a functional cartridge, but not a real impressive one. The actions are not considered as robust as something on the order of the '98 Mauser. But the ammo is lighter as well, so it isn't dangerous.
It is a great example of first generation smokeless powder cartridge and a 'new' (for the time) design. Yes, it has an ammunition supply and feed system copied from the Mannlicher design; which was copied from the earlier Werndl rifle system - made in the same factory.