great rifle , seems to be a Romania Mannlicher action in the 8x50R. the first sporter I see with this chamber but Austria rechamber captured mannlicher rifles from Romania for the 8x50R in WW 1. what for a clip use this one, the M 95 clip or the M93 clip?
btw, this is an M 95 Mannlicher sporting rifle in 6,5x53R so the reverse is also possible

please dont hesitate to show more pics from you rifle, also the complete view from left and right side. I am not against uncommon Mannlicher!
The 8x50R is very hard to get but with the new Prvi 8x56R Brass there is an superp basic case for handloading. Hirtenberger had loaded this cartridge around 1990 for some years with the ABC bullet. this ammo is now also collector stuff in europe. only Waffen Dorfner in Vienna is loading this cartridge to my knowledge with an 14,2 gramm softpoint. the ammo is CIP proofed but may not reach your side of the pond.
http://www.waffen-dorfner.at/buechsen.html

I think that the original 15,6 gramm bullet at 620 m/sec must be a great killer up to 150 meter.

see on the Waffen Dorfner website that they have an M 95 long rifle "Wehrmanngewehr" for the 8x46R Frohn, single shot of course. interesting for the collector of such Wehrmannrifle's.

http://www.waffen-dorfner.at/waffen.html