I took out a set of 24s in a 109
E-4 with 52 rounds the other night
I don't know what it was, but had I been in any Luftwaffe ride with 2 x 20mm cannons I doubt the same attacks would have yielded the same results... The MG FF cannons seemed unusually powerful.
I was under the impression that the MG 151 cannons were vastly superior to the MG FFs.
On one buff a High-Six shot was enough to brind down the B-24 with a very short burst. (I wasn't staying in one place longer enough to let the laser-ack get anywhere near the Emil, I suspect the wings would jump off in fear of a bullet at close proximity)
It was very odd.