2 rounds left the barrels of the hispanos. One hit the root of the tail fin, and one hit the cockpit.
the shot couldnt miss with the correct angle of 'merge' and timing of the trigger and a lot of luck.
what i cant understand is why the ammo counter fails to register these 2 X 20mm rounds that are fired.
edit: and the canopy shot, i just checked, didnt even give a wound. the kill was awarded as critical parts of the tail section came off and the pilot bailed. just shows, the closer you are the more damage it does, a true 1 ping kill in essence.