My father had the Mannlicer-Schoenauer in 6.5X54, the carbine model, beatiful rifle, excellant round. Accurate and did well on Elk and smaller animals. I have no ideal what happened to the rifle and he died.
I have a MS carb. in 8X51, barreled action, I was going to chamber it for the 6.5 but the cart. is stamped on the receiver, dont know how I could pull it off, as I want to restore it to as close to orginal as I can.
The MS Rotoring mags are excellant rilfes, and 6.5X54 is an excellant round, congrats on your find.