Stephan98k
aka 8x57IS
Please check again your stock, usually there shouldn't be a e/M at your Berlin-Lübecker Maschinenfabrik stock. It would suit to a "243 1940" Mauser Berlin in the "g" block. There was some Mauser Berlin Kriegsmarine deliveries in 1940.Interesting.
Were there any KM accepted rifle that were diverted to the Heer?
I have a 237 1940 g block rifle that is M marked on the stock, but has an unmarked take-down disc.
The rifle ended up in Norway at some point, and was a surrender weapon at end of WW2, and went into the Norwegian Navy, so stayed in 7.92 and is thus assumed a 'double' Navy issue.