Dumb You dare use APHE? In the the blessed Tower of Stalin. To the gulag with you. if you need to use APHE in a Kv2, you clearly are not good enough to use the tank. APHE requires many workers and potatoes to produce and HE is far sufficient
But seriously, use the HE on the turret traverse area. It's a great shell trap and the shrapnel goes down into the ammo racks through the very thin roof armor. Also, if you are aiming at the front of a tiger, aim right underneath it. the shrapnel and explosion rips the floor armor apart