For the T-34, Tiger, Tiger II and Panther tanks you need to aim at the top of the engine compartment, ideally where the turret ring is but usually on top of the engine compartment is enough to get a kill in a single shot with the B-25H.
ack-ack
OK ack-ack I'll test this for one shot "utility". Against undamaged tanks. I wish you had given your dive angle. I performed a 45 degree dive on the Panther's rear with the 410 BK 5. Ended up with the light saber ricochet rather than an exploding 50mm Mine shell explosion for some reason. Also ended up dead in the ground attempting to recover from the dive.
I'm going to have to make a short range one shot tank busting gunsight for the B-25H. I doub't shooting at tanks anyone needs to know at 4000yds the 75mm HE from 3000ft altitude drops 353yds(1059ft) or 88Mil. And takes 9 seconds to hit the target. But then that's why the reflector glass in the B-25H is so long to respond to that large tilt dial moving the pipper down 88Mil.