SDP wz 66 Grom

SDP wz 66 Grom stats at a glance

The SDP wz 66 Grom has 1040 hit points , 100mm of frontal hull armor , and a top speed of 45 km/h. Its strongest gun configuration deals 800 damage per shot with 272mm of armor penetration , giving it a theoretical maximum DPM of 3000.

Hull & survivability

The front-to-side armor ratio is 1.4:1. Side armor is relatively comparable to the front, meaning the Grom can absorb some side hits in close-quarters fighting.

Mobility

Forward-to-reverse speed ratio is 3.0:1. 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 Grom can theoretically output up to 3000 damage per minute at sustained fire (shot damage × rounds per minute).

How Grom compares to its peers

There are 62 tier 8 tank destroyers in WoT, including the Grom. Its 1040 HP places it in the top 46% for hit points among same-tier tank destroyers (peer average: 1006). Frontal hull armor of 100mm ranks in the top 56% for the class (peer average: 127mm). Top forward speed of 45 km/h is faster than 51% of peer vehicles in this tier and class. The strongest gun deals 800 damage per shot, higher than 100% of comparable vehicles. Best penetration of 272mm puts it in the top 11% for armor-piercing capability in its class.

Direct comparisons

• Grom vs TS-5 — tier 8 tank destroyer from USA
• Grom vs XM66F — tier 8 tank destroyer from USA
• Grom vs XM57 — tier 8 tank destroyer from USA
• See full tier 8 tank destroyer tier list — all 62 vehicles ranked

Related tier 8 tank destroyers

• Lorraine 120 Alby — France, premium
• Alpha Rhm.-B. WT — Germany
• Alpha Skorpion — Germany
• AMX AC mle. 48 FL — France, premium
• AMX AC mle. 48 — France
• AMX Canon d'assaut 105 — France, premium
• AT 15 — UK
• Bastion — UK
• All Poland tanks · Tier 8 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

The SDP wz 66 Grom, a tank destroyer from the late 1950s to early 1960s, was designed taking into account Soviet experience of developing similar vehicles. The armor was meant to withstand attacks from existing and potential NATO tanks, and a gas-turbine engine was planned to increase mobility. As armament, several types of guns were considered, including so-called deep-rifled ones. It was not possible to implement some of the ideas due to the technological restrictions of the time. All of the concepts went no further than blueprints.

Frequently asked