Was at a gunshow this past weekend and bought an odd cartridge. I’ve been searching around and have yet to identify the caliber designation.
Bullet is 8.15mm in diameter
Case is 54mm long
Headstamp has letters TH and then an R with Date of 2 39
What I’ve got so far:
round is of French manufacture from 2nd quarter of 1939. TH designates the La Seine plant, R designates the ?powder source? which is Rugles usine des Trefileries et Laminoirs le Havre
The cartridge doesn’t match up with any of the Wikipedia list of French Rifles of WWII, and a search for 8.15mm French hasn’t yielded any results. Any help would be much appreciated.