Interesting. The action and barrel both share a 112218 number, on top of another serial number on just the action. I had thought that might signify a 11/22/1918 date, but that would of course predate the 8x60mmJ and would have put its production at an odd time for a sporting rifle. An Austrian gunmaker told me the 433 was it’s manufacture date. Maybe it was made in 1918 as an 8x57, then reamed out to 8x60mmJ in 1933, long past the caliber mandate. That gives some explanation to the .318” bore instead of the .323”.
