IMHO it is a true Steyr factory made rifle from the 1938 to 1945 period. Not a catalog, but a very rare special order item. Obviously, shape of bolt stop, it was put together on a short Magazine model 03-05 action, not on a long magazine M 1925 one. Though the M-Sch standard 6.5mm cartridge was the 6.5x54 MS, the flat shooting 6.5x57 loads featuring a 93 to 96 gr pointed bullet at a "magic" speed of 1000 m/sec = 3280 fps was quite popular among the "Reichsdeutschen" (non-Austrian Germans)during the 1930s for mountain hunting, much ballyhoed by hunting journals.