I'll put this on the list to investigate at some point. I already see one unrelated issue with ATR's in general. A case could be made for increasing the range a little bit to bring the critical 200 - 300 yard pen perhaps a tiny bit closer to reality but we are splitting hairs here. We deal in CM of armour and CM of penetration and when the armour and pen are down around 1 and 2 there's not much that can be done
FYI some good info here
LINK
as well as the comment......."the Soviets were so unimpressed for their poor armour penetration capabilities that they never bothered to issue them"
In this case I think it should be good luck to knock out or at least damage ( ** ) something like a SdKfz 222 at 200 yards but not completely impossible and increasing the range to 12 or 13 along with all the other ATR with 10 range now, might be what's needed but I'm busy with other matters ATM
Don