I wonder if this mark is some kind of German military acceptance mark, possibly for sporting arms.

WJN - Waffen Jagdt N-something.

Perhaps they had a standard where all barrels had to have a marked length. Note that both guns have the same measurement on each barrel.

Germans are nothing if not meticulous.


Last edited by Shotgunjones; 05/07/17 10:33 PM. Reason: more bs
"The price of good shotgunnery is constant practice" - Fred Kimble