I had a situation where I assumed an enemy tank was shooting trains so I upped a t34 with all AP ammo, stalked the guy, and came in behind him landing 5 or 6 times.
He turned around with his HE loadout and took out my turret and was out of HE rounds after that (he had no AP rounds).
We hosed each other's tracks off and sat there.
Luckily, a friendly 49er came up and resupplied me while another dispatched the tank.
Had original poster's wish been implemented, the guy could have towered out while I was sitting 10 feet away after having landed 5 or more AP rounds on his tank.