Even if the Vetterli has been converted to CF (not very darned likely, as the ammo was never available here) it is still an Antique: no ammo commercially available.
You CAN make brass from .348 Winchester (or .50-110 Express, if you have lots of that) but it is strictly a handloading proposition.
Checkering on the Vetterli is factory. What is missing here is half of the fore-end, half of the magazine and the front band and clearing rod. These were the official swiss rifle, took the .41 Swiss rimfire round. Quite popular for hunting, up until about the 1930s. They were cheap and they could fall down a mountain without getting hurt.
Ross is, as has been ID'd, a Mark II*****. Issue to a Cadet Corps in April, 1922. Army will have a directory of all Cadet Corps, so you can trace it that way.
Nice toys!