The Austro-Hungarians in WW I converted M91 rifles and Carbines to use either 6,5MS or 6,5 Carcano. The Rifles were done by "AZF" ( Artillery Workshops in Vienna) and Marked
"It. u. Gr." ( Italien und Greichen). Austriahad large quantities of 6,5 MS ammo ( 1914 Greek rifle contract, undelivered) from G.Roth...and continued making it during WW I.
So we have A-H WWI, IIId. R, WWII, Greek Post-WW II, and several CanadianBubbatizers.
Doc AV