Hello: Just an off-the-wall question from a "colonial", who never tires of reading about/watching the amazing exploits of the RAF.
Why did so many, if not almost all British fighters/bombers in that war have guns with only .303 caliber guns, instead of the .50 as on many Yank planes? Was it mostly a matter of the weight of the ammo belts etc? Let's exclude the cannons on the stupendous Beaufighter etc.
What was the main caliber of the Luftwaffe guns?
