Tier VII Artillery Soviet Union

S-51

Tank ID 1793

Vehicle description

Wargaming Tankopedia

Designed and built on the chassis of the KV-1S. The development of a prototype started in January 1944. The 203-mm B-4 howitzer was mounted on the restored hull of a KV-1S. From March 1944 through to the beginning of April, the vehicle underwent trials. Despite successful trials, the S-51 never entered mass production.

Description from the Wargaming Tankopedia · Language selected automatically

Technical profile

Standard configuration

Hit points

350

Weight

50.2 t

Forward speed

30 km/h

Reverse speed

8 km/h

View range

275 m

Signal range

625 m

Armour

	Front	Sides	Rear
Hull	60	60	60
Turret	–	–	–

Engine: V-2K (S-51) · 500 hp

Radio: 12RT

Armament

Standard gun and ammunition

152 mm BR-2 (S-51)

Calibre 152 mm

Reload time 25.0 s

Aiming time 5.4 s

Dispersion 0.69

Rate of fire 2.40 /min

Ammo capacity 30

Shell types

HE · high explosive Damage 450 / 600 / 750

Penetration 29 / 38 / 48 mm

HE · high explosive Damage 600 / 800 / 1,000

Penetration 36 / 48 / 60 mm

AP · armour-piercing Damage 330 / 440 / 550

Penetration 162 / 216 / 270 mm

Marks of Excellence

Damage thresholds

Combined Damage (Damage + Assist + Tracking)

Combined damage

1 Mark ≥ 65 %

1,854

2 Marks ≥ 85 %

2,697

3 Marks ≥ 95 %

3,484

Approximation based on WN8 expected values — not an official Wargaming figure.

WN8 Expected Values

XVM reference

XVM Expected Values for WN8 calculation (per battle)

Per battle (avg.)

Avg. damage 1,124

Avg. spotted 0.04

Avg. kills 0.92

Avg. defence 0.81

Exp. win rate 50.74 %

Community stats

Measured, not estimated

Average across every profile stored on WG-Watch — real battles instead of expected values.

Win rate

51.03 %

Avg. WN8

1,292

Battles

31,917

As of Aug 31, 2026

Rank 79 of 85 at Tier VII

Best players on this tank

By WN8

From the stored profiles, minimum 50 battles on this vehicle. Updated daily.

#	Player	WN8	Battles	Win rate
1	NewMultiShow eu	3,994	269	56.13 %
2	Yzne eu	3,019	166	64.46 %
3	Ursid eu	2,886	220	46.82 %
4	PicklesWart00th eu	2,874	458	63.76 %
5	m00h eu	2,793	149	47.65 %
6	Manton_ eu	2,493	234	52.14 %
7	M1L4N7 eu	2,490	236	54.66 %
8	mka999 eu	2,431	286	63.64 %
9	Jul_Le eu	2,390	130	51.54 %
10	skill4ltu eu	2,284	121	59.50 %