Sure thing. However I am more than certain, than in one of patches prior to Tanks DLC release, turret rings were changed, at least in Scorcher and Sochor. It seems that Sochor kept it's enlarged turret ring, while Scorcher was returned to the model prior this turret ring modification. I am not 100% certain about the Kuma, but it was also said to be affected by this change in one of the prior patch notes, that turret ring was enlarged.

Yeah sure, the problem is that the turret race ring is too narrow, it's not realistic as race rings in general must be very wide (over the width of the hull itself) so crew and the main gun (in max elevation) will fit inside.

Problem had been solved through reinstalling. It seems it was some sort of corrupt file.