Yep - that 6.5 is a classic cartridge, if not somewhat hard to come by in factory guise/loading.
What I
REALLY admire, though, is the precise fit/finish & machining used when those Mannlicher-Schoenauer rifles & carbines were built - the way those rotary magazines slide out/in, as smoothly & solidly as a bank vault's door opening & closing, is amazing.
It's worth owning one, just to play with the dang thing.
.