Doesn't the AH damage system award the kill to the guy that did the most damage to the target rather then the guy that finishes it off? As far as I understand it, thats the way it goes in A2A at least...
Now lets assume a guy in a P-51 put half of his ammo on a T34, thats 1100 lbs worth of ordnance recorded, however the only real damage done is the messed up paintjob on the tank.
Now there's a guy in a Panzer, and scores a well placed 75 mm AP killshot - tank dead, but only about 70 lbs worth of ordnance recorded... kill goes to the P-51?!
Seems too easy in my book, but I rarely do strafe tanks in non-tankbuster AC...