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SECTION 10 // ARMOR / VEHICLE PROFILEREF · SDP-WZ-66-GROM
VIIIPremium
SDP wz 66 Grom
Poland·
Tank Destroyer·ATSPG assaultThe 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.
Health
1,300
DPM
3,000
View range
350m
Speed
45km/h
Camo
66Good
Mark of Excellence requirementsCombined dmg + assist · NA · 2026-07-12
3 marks · 95%
3,350
2 marks · 85%
2,688
1 mark · 65%
1,822
A-01 · ARMOR SCHEMA
Armor thicknessMeasured
Nominal plate thickness straight from the game client. Click any plate to highlight it on the 3D model and focus the camera on it.
Armor
20mm195mm
Hull
All 21 plates
A-02 · SPECIFICATIONS
Specifications
Builds
Grade
Experimental
CrewShared perks
Field mods
Lv 0/6
Weaponry
- DPM
- 3,000
- Damage
- 800
- Penetration
- 272 mm
- … at 500m
- 264 mm
- Reload time
- 16.00 s
- Rate of fire
- 3.75/min
- Aim time
- 2.70 s
- Dispersion
- 0.400 m
- … moving
- 0.200
- … tank traverse
- 0.200
- … turret traverse
- 0.080
- … after firing
- 4.0
- Caliber
- 100.0 mm
- Shell velocity
- 1,400 m/s
- Max range
- 720 m
- Ammo capacity
- 40
- Potential damage
- 32,000
- Shell cost
- 1,450 cr
Mobility
- Top speed
- 45 km/h
- Reverse speed
- 15 km/h
- Power/weight
- 15.88 hp/t
- Tank traverse
- 32.0 °/s
- Turret traverse
- 26.0 °/s
- Effective top speed
- … hard
- 45.0 km/h
- … medium
- 45.0 km/h
- … soft
- 31.8 km/h
- Effective traverse
- … hard
- 32.0 °/s
- … medium
- 27.1 °/s
- … soft
- 17.6 °/s
- Gun elevation
- 15 °
- Gun depression
- 7 °
- Gun traverse range
- -5° / 5°
- Terrain resistance
- … hard
- 1.10
- … medium
- 1.30
- … soft
- 2.00
Everything Else
- Hull armor
- 100 / 70 / 40
- Health
- 1,300
- Engine health
- 360
- … repaired
- 170
- Track health
- 200
- … repaired
- 150
- … repair time
- 6.86 s
- Ammo rack health
- 200
- … repaired
- 135
- Fuel tank health
- 200
- … repaired
- 70
- Total weight
- 51,000 kg
- Stationary camo
- 14.55 / 6.36%
- Moving camo
- 8.75 / 3.82%
- View range
- 350 m
- Fire chance
- 20%
Gun Constraints
-5° / 5° traverse
Crew
CommanderRadio Operator
Gunner
Driver
Loader
A-03 · SERVER PERFORMANCE
Server performance
Aggregate stats from NA players over the last 30d
Avg WN8
3496
Super Unicum
Avg WNX
3486
Super Unicum
Win rate
53.8%
Average
DPG
2559
Frags
1.52
Spots
1.15
Survival
35.1%
Dmg taken
1080
Hit rate
77.7%
Spot assist
235
Track assist
36
Defense
0.95
Avg XP
1097
Aggregated from 35 tracked NA players · 442 battles. Coverage grows as more players are tracked.
MoE thresholds (combined dmg + assist)
65%1,822
85%2,688
95%3,350
Reach these combined damage (dealt + assist) values over a rolling window to earn marks of excellence.
A-04 · TOP OPERATORS
Top players
Highest performers in the SDP wz 66 Grom on NA
A-05 · VIDEO INTEL
Video reviews
Curated reviews, replays, and guides from veteran players
10:32reviewWOT SDP WZ 66 GROM INSANE LEVEL Last Stand May 2026 Event
20:13reviewTHE BEST TIER 8 IN THE GAME! Grom
8:58reviewTHE POLSKA GROM EXPERIENCE | SDP wz. 66
18:26reviewTHE MOST OP PREMIUM EVER? GROM Full Review
30:34reviewSDP wz 66 Grom - Tank Review - World of Tanks
by QuickyBaby
1:27reviewRolling Thunder: Claim the SDP wz 66 GROM | World of Tanks
A-06 · SIMILAR HULLS
Similar tanks
Closest matches by stat profile — pick the ones that fit your playstyle.
A-07 · CHANGELOG
Balance changelog
Patch-by-patch changes to this tank
No tracked balance changes
When this tank gets buffed or nerfed in a patch, the change shows up here.