I have a similar problem with the T-14's 75mm and the American 90mm (not the 90AT). Same deal as you have experienced with the E-100 guns. I sent the exact same info, including 7 replays, in 2 different ticket to support. The first replied "if its a bug we will fix it in the next patch" and the second I was sumarily told to study the hit zones on all the tanks. Like a Pat Answer. I Hate Pat Answers. I used to be able to do a LOT of damage and make a LOT of kills with the T-14.. now I cant hit *** with it.. and ..trust me... it has nothing to do with the hit-zones. It will pin .. but not before it is either hit-no-damage, or Bounce 5 or six times befire it will. The really lol funny parts is that both guns will bounce HE Rounds .....DUH? I mean .. HE blows on contact, it doesnt "bounce", and when it blows, it should Damage something. My Lowe and E-75 will track if we run over a shadow of a pnone line or his a musquito head on. Now , will someone please tell me WTF is going on?