ISU-122S

ISU-122S stats at a glance

The ISU-122S has 696 hit points , 90mm of frontal hull armor , and a top speed of 43 km/h. Its strongest gun configuration deals 390 damage per shot with 175mm of armor penetration , giving it a theoretical maximum DPM of 3163.

Hull & survivability

The front-to-side armor ratio is 1.0:1. Side armor is relatively comparable to the front, meaning the ISU-122S can absorb some side hits in close-quarters fighting.

Mobility

Forward-to-reverse speed ratio is 3.6:1. Reverse speed is limited, so pre-aim and exposure timing matter more on this vehicle.

Camouflage

Available guns (1)

With the top-tier gun, the ISU-122S can theoretically output up to 3163 damage per minute at sustained fire (shot damage × rounds per minute).

How ISU-122S compares to its peers

There are 24 tier 7 tank destroyers in WoT, including the ISU-122S. Its 696 HP places it in the top 70% for hit points among same-tier tank destroyers (peer average: 733). Frontal hull armor of 90mm ranks in the top 39% for the class (peer average: 101mm). Top forward speed of 43 km/h is faster than 35% of peer vehicles in this tier and class. The strongest gun deals 390 damage per shot, higher than 78% of comparable vehicles. Best penetration of 175mm puts it in the top 87% for armor-piercing capability in its class.

Direct comparisons

• ISU-122S vs Scorpion — tier 7 tank destroyer from USA
• ISU-122S vs T28 HTC — tier 7 tank destroyer from USA
• ISU-122S vs Super Hellcat — tier 7 tank destroyer from USA
• See full tier 7 tank destroyer tier list — all 24 vehicles ranked

Related tier 7 tank destroyers

• AMX AC mle. 46 — France
• Archer — USA
• AT 15A — UK, premium
• AT 7 — UK
• Challenger — UK
• Chi-To SP — Japan
• E 25 — Germany, premium
• SDP 57 Gowika — Poland
• All USSR tanks · Tier 7 premium tanks

Understand the stats

Want a deeper grasp of what these numbers actually mean in battle? Read the glossary:

• What is DPM — the most important offensive metric
• Alpha damage — single-shot damage and what it means for playstyle
• Penetration — and how it interacts with armor angling
• Hull-down position — the king of defensive plays
• View range — how spotting actually works

About this vehicle

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.

Frequently asked