Another problem with the T-34 is when it goes up against another T-34. I've never been able to kill a T-34 with a T-34. Just only been able to disable the turret. Then it just doesn't die.
I had a fantastic experience in a T-34 against a T-34. Blew up the other T-34 with 3 rounds of AP... probably one of those freak-shot lucky kills, but it did happen.
First, after confirming the distance and zeroing in the range, my first shot landed on the enemy T-34's tracks from a slightly side angle. This killed one track and slumped it to one side.
Then, I drove my T-34 to the opposite side of the direction of the slump - due to the angle the T-34 couldn't shoot me from that direction. I closed in to almost zero range, fired two shots at the opposite track at a very low angle. One of them must have penetrated through the bottom armor or something - it blew up upon impact.