This is unacceptable !
Rate of fire (2 tanks + AT gun) is very similiar, yet in Enlisted Soviet engineers are always building German PaKs-40 instead of historical ZiS-2 !!!
With APHE, APCBC and limited APCR ammo ZiS-2 would be able to pen turret of Panther and even Tiger II.
Better than PaK-40 penetration, can be balanced by a longer build-time of ZiS-2 
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Where did the number of shots of ZIS-2 in your video comes from?
Unfortunately, there is no APCR for zis-2 in War Thunder.
Zis 2 actually has less penetration than Pak 40 in War Thunder.
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The ZiS-2 would not even chip its paint, the game needs BR scaled AT and AA guns.
5 Likes
not really unless you meant side of the Tiger II. It could probably work against Panther’s armor
It has to be a ZiS-3; it can’t be a ZiS-2.
Why ?

190 mm pen vs 185 mm of steel - it should work, only that APCR has low post pen damage.
ZiS-3 at low BR, ZiS-2 at high BR.
Only that they might shoot a bit slower (15 rpm) than in my video.
1 Like