85 mm vs Soviet Tanks

We saw how the Soviet 85 mm 52-K gun performed against the Tiger, but does the domestic KV-1 do any better?

"Shooting at KV-1 and T-34 hulls from the 85 mm gun

KV-1 and T-34 tanks were fired upon by armour piercing tracer shells from 1500 m. Results are given in table #4

Table #4

Armour plate	Armour thickness (mm)	Angle	Impact angle	Result
KV-1 tank hull
Front	75+30	60	70	Complete penetration of the appliqué armour and main armour. 100x100 mm breach.
Turret rear	75	15	70	Dent 100 mm in diameter and 35 mm deep.
Turret front	75+15+20	0	90	The shell penetrated the main armour, deflector plate, and appliqué armour. Fragments from 20x20 to 100x100 mm were dislodged from the inside. The shell was stuck in the armour.
Turret rear	75	75	90	Complete penetration. 100x110 mm breach. The welding seam was destroyed.
T-34 tank hull
Turret side	60	30	0	The left part of the turret with the observation device slot cracked off. Fragment size was 1400x750 mm.

CAMD RF 38-11355-1545 p.17