ISU-122S characteristics
Firepower
- Damage
- 390hp
- Penetration
- 175mm
- DPM
- 3,162
- Reload
- 7.40s
- Rate of fire
- 8.11/min
- Aim time
- 2.90s
- Accuracy
- 0.410m
- Dispersion moving
- 0.200
- Shell velocity
- 800m/s
- Caliber
- 122mm
- Gun depression
- 18°
- Gun elevation
- 6°
Mobility
- Top speed
- 43km/h
- Reverse speed
- 12km/h
- Engine power
- 600hp
- Power/weight
- 13.1hp/t
- Hull traverse
- 27.0°/s
- Turret traverse
- 26.0°/s
- Hard terrain
- 1.10
- Medium terrain
- 1.30
- Soft terrain
- 2.20
Survivability
- Hit points
- 696hp
- Hull armor (front)
- 90mm
- Turret armor (front)
- —
- Fire chance
- 0%
- Ammo rack HP
- 200hp
- Track HP
- 200hp
Spotting & other
- View range
- 350m
- Signal range
- 730m
- Camo (still)
- 0.3%
- Camo (moving)
- 0.2%
- Weight
- 45.8t
ISU-122S historical reference
A heavy assault gun, built on the basis of the IS tank, was effective against German heavy tanks as well as fortifications. The prototype was built at the Chelyabinsk Kirov Plant in April 1944. The vehicle entered service in August of that year, and a total of 675 vehicles were manufactured in 1944 and 1945.