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Object 257
XP cost142,700(~€21.29)
Credits cost3,560,000(~€32.11)
Total cost~€53.40
Free XP from T1439,435(~€60.24)
IXUSSRHeavy tankBreakthrough

Object 257

World of Tanks EU statistics for the IX USSR heavy tank Object 257.

Object 257 tech tree branch

Object 257 characteristics

Firepower

Damage
390hp
… vs modules
165hp
Penetration
225mm
… at 500m
204mm
DPM
2,108
Reload
11.10s
Rate of fire
5.41/min
Aim time
3.10s
Dispersion
0.380m
… moving
0.200
… hull traverse
0.200
… turret traverse
0.100
… after firing
3.50×
… gun damaged
2.00×
Shell velocity
1,007m/s
Max range
720m
Caliber
122mm
Ammo capacity
40
… potential damage
15,600hp
Shell cost
1,025
… full ammo
41,000
Gun depression
15°
Gun elevation
5°
Gun traverse range
360°

Mobility

Top speed
50km/h
Reverse speed
15km/h
Engine power
750hp
Power/weight
14.6hp/t
Hull traverse
35.0°/s
Turret traverse
26.0°/s
Terrain resistance
… hard
1.30
… medium
1.70
… soft
2.50
Effective speed
… hard
41.1km/h
… medium
31.5km/h
… soft
21.4km/h
Effective traverse
… hard
35.0°/s
… medium
26.8°/s
… soft
18.2°/s

Survivability

Hit points
1,900hp
Hull armor
… front
130mm
… side
130mm
… rear
70mm
Turret armor
… front
249mm
… side
110mm
… rear
70mm
Track armor
20mm
Fire chance
12.0%
Track repair time
12.03s
Module HP (max / repaired)
… ammo rack
210 / 140hp
… track
220 / 165hp
… engine
370 / 185hp
… fuel tank
200 / 80hp
… turret ring
160 / 80hp
… viewport
110 / 55hp

Spotting & other

View range
380m
Signal range
730m
Camouflage
… stationary
6.3%
… moving
3.2%
Weight
51.3t

Ammunition

Equipment

Consumables

Directives

Field Modifications

Crew Skills

Crew level100%
Commander / Radio Operator
Driver
Gunner
Loader

Object 257 modules

VIII122 mm BL-9 (257)Stock
IX122 mm BL-13-1 (257)
56K280K
VIIIIS-3 (257)Stock
IXObject 257
24.8K62K
VIIIV-2-54 (257)Stock
IX2x V-16 (257)
48K125K
VIIIObject 257Stock
IXObject 257 Version 2
24K62.5K
XR-113Stock
IXObj. 257

Object 257 historical reference

A project of the heavy tank designated IS-7 that was developed in 1945. The vehicle was supposed to feature an electromechanical transmission. Development was discontinued at the documentation design stage. Existed only in blueprints.