Curiously, your Browning barrel has French proof-marks. Its marks are clearly those of the St. Etienne proof house. The F below the proof marks may stand for France, not full.
FYI: Varney-Carron the old French company that made barrels for Hastings, and has acquired the Hastings name, does replacement barrels for the Browning Auto-5
Last edited by zippy13; May 20, 2011 at 03:10 AM.
Reason: add FYI