Back in the 1970's in the US Army we would watch Breaker Morant as part of Geneva Convention classes! "Sergeant Major!"......"Sir"...... and Code 303 or regulation 303
They were still using it in the 80s. And it was "Rule .303" in reference to the .303 service cartridge, or rule of the rifle. Kind of a significant line in the movie, and the Army Instructors didn't understand thenreference.
