S-51
Tier 7 · ussr · SPG
About
Developed by the Grabin Central Artillery Design Bureau in the fall of 1943. The S-51 passed trials successfully in the spring of 1944, but never entered mass production.
Survivability
Hit points
800
View range
360 m
Signal range
360 m
Engine fire chance
15%
Armor (mm)
Front
Sides
Rear
Hull
60
60
60
Gun · 203 mm B-4
Caliber
152 mm
Rate of fire
4.6 rpm
Reload
13.04 s
Aim time
6 s
Dispersion @ 100 m
0.64 m
Gun arc
2° / 58°
Traverse
23°/s
Ammo
40
Mobility
Top speed
30 km/h
Reverse
8 km/h
Engine
500 hp
Power/weight
10.0 hp/t
Hull traverse
18°/s
Shells
HIGH_EXPLOSIVE
570 dmg (428–713)
88 mm pen (66–110)
Stun 0–0 s
ARMOR_PIERCING
450 dmg (338–563)
246 mm pen (185–308)
Stun 0–0 s
HIGH_EXPLOSIVE
570 dmg (428–713)
90 mm pen (68–113)
Stun 0–0 s
Marks of Excellencesample size 48 · updated 5/23/2026
1 mark
877
avg damage
2 marks
0
avg damage
3 marks
0
avg damage