Well, amongst other warnings for the 8mm, yes, or something to that effect. Manual's at the house, where there's no computer.
Other examples- Hornady has probably three different tables for 45-70 with different applications in mind. They have warnings about the non-interchangibilty of the .222 Rem Mag and the .223 Rem. All sorts of things that would indicate that if there was more to consider when loading for the Carcano, they would have included it. It's not like there aren't all sorts of dire warnings in that section already.
BTW, it's not like Hornady hasn't been loading ammo and selling it commercially themselves. Which ammo could end up in any old Carcano. I've shot it. It's not downloaded.
In fact, I would recommend most folk shoot the factory stuff first. Another layer of protection, if you will. And it's not all that expensive when it's available.
I do have a Carcano carbine getting sorted. But what with blackberry season on and overtime and setting up the new shop, I don't know when I'll shoot at the range!
Also have a 7,35 short rifle to shoot that's been patiently awaiting a go.