Was the .50 a massive improvement on the .303 arrangement ??, it didn't last long as postwar the RAF quickly went to 20mm cannon in their turrets.
Which generates a second question - was the .50 a slower rate of fire than the .303 and were both of them faster than the 20mm ??
And gun sights - was the turret gun sight standard 'iron sight' arrangement, or a reflector sight or a gyro gun sight of some type ??
Any expert on here know ??
Arc