Smack that turret ring! Heh
That works real well from the sides, less so head on. Nevertheless, on the T-64 in a frontal shot, our aiming point was the driver's face- if his head was outside his hatch- even though a T-62 driver is not centered like an M48/M60, but offset to the gunner's side, as on a Sherman [where the driver is offset on the loader's side]