Quote:
Originally Posted by philip.ed
Sorry, I thought you were trying to say that the .303 bullets carried the tracer inside them. On some levels this is right, but none of the .303 bullets intended to inflict damage did 
The tracer-rounds, of course, would be in the shape/calibre of the round required to be fired. |
From:
http://www.quarry.nildram.co.uk/BoB.htm
The incendiary ammunition was also variable in performance. Comparative British tests of British .303" and German 7.92 mm incendiary ammunition against the self-sealing wing tanks in the Blenheim, also fired from 200 yards (180m) astern, revealed that the .303" B. Mk IV incendiary
tracer (based on the First World War Buckingham design – it was ignited on firing and burned on its way to the target) and the 7.92 mm were about equal, each setting the tanks alight with about one in ten shots fired.