Could be a 45-75 Winch. What is the case lenth and case neck dia?
Its very close to:
11.3 x 50R Beaumont M71 and 11 x 52R Netherlands Beaumont and 11.43 x 50R [,43] Egyptian Remington............but not an exact match to any of them.............AND as mentioned above, pretty close to the Winchester 45-75...................wTc



























