Arizona

That's why I have a suspicion it came from Europe.

7 x 57R OR
7 x 65R

9.3 X 74R would tend to duplicate the other
375 Flanged Magnum barrels.

Would have to look at what cals I would have liked
but those 3 are too close together for my liking.

I have 2 gouble rifles in 375 Flanged Magnum
- great cartridge.