ATR's v PzIV TESTS
I lined up 12 Russian ATR's and ordered them to fire at the panzer at 200 metres.
Against the orangey side armour they regularly scored partial penetrations and the rare full pen (main pic).
After one turn the panzer was panicking, after two turns it was routing and had lost a crewman, and after 3 turns it
abandoned.
I then turned the panzer face on (inset) to see how they did against its yellowy front armour, and they were completely unable to penetrate, all I saw were the odd partial pens, and after they expended all their ammo over 10 turns the panzer was still alive and unscratched with no crew losses.
Conclusion - The tests simply confirm what we already knew, namely ATR's can kill orangey armour, but yellow armour defeats them completely.