The SU-85 does the exact same damage as the Panther, 160. And the Jackson does 240, which is 66% more than the Panthers.
The Panther is not some unbeatable tank, the ZiS gun has over a 50% chance to pen, the SU-85 has over a 50% chance to pen.
Christ on a cracker talk about exaggeration.
Just a correction, the Jackson has 50% more damage, not 66%.