No, it's admitted that HTC has averaged the damage of the belting. The minengeschoss were substantially more powerful than this average, becuase there was only 1 or 2 of them for every 5 rounds. They were more explosive than Hispano rounds.
That's been rehashed for 5+ years now.
The thing about bombers isn't the guns. It's the speed. If the bomber even had just 1 set of guns (no drones) it would still be a speed issue.
I have a film from a month or two ago where I ran into B17s at alt, that were cruising, YES CRUISING AT HISTORICAL SPEEDS, and my 190 was able to easily make slashing attacks as LW were reported to make. His guns were able to hit me but there was none of this utter nonsense BS about the bomber flying so fast the fighter falls behind into a 6 position just to get a shot off.
THAT's the problem with bombers: their speed is FFT 100% of the time. When used historically it doesn't matter how many drones they have, they'll get eaten without escorts. I have the film of this if anybody is interested. I started lower and slower and had to climb up to the bombers, but was still able to overtake them and set up repeated attack runs. They weren't just letting me do it, either.