The incendiary ammunition was I'm sure better known by as de Witt.
The contrast in the use of firepower was interesting between the 2 sides.
On the one hand,the British with the relatively small calibre .303-the 8 Brownings on the Spitfire and Hurricane I suppose was similar to a shotgun effect,of course very effective at short range.
The Germans on the other hand with the (20mm?) cannon on either wing, and (7.92mm?)
machine guns was probably more potent in the hands of a good shot.However it would be easier to miss the target, but when you hit, you sure did.
Much is said of the lesser experience of the British, sometimes described as the gentlemen V the players.Perhaps the scales were more evenly matched by their choice of weapons.