Object 263
Tier IX Tank Destroyer Soviet Union

Object 263

Obj. 263

Tank ID 21249

Vehicle description

Wargaming Tankopedia

The development of a heavy tank destroyer on the basis of the IS-7 heavy tank was started in 1950. Three design projects were developed, one of which resulted in a full-size wooden prototype. However, further development was discontinued due to phasing out mass-production of the IS-7.

Description from the Wargaming Tankopedia · Language selected automatically

Technical profile

Standard configuration

Hit points

1,800

Weight

60.4 t

Forward speed

55 km/h

Reverse speed

20 km/h

View range

360 m

Signal range

760 m

Armour

Front Sides Rear
Hull 250 80 50
Turret

Engine: 2x V-16 (263) · 1,000 hp

Radio: 10RT-26

Armament

Standard gun and ammunition

122 mm M62-S2

Calibre 122 mm
Reload time 12.0 s
Aiming time 1.9 s
Dispersion 0.39
Rate of fire 5.00 /min
Ammo capacity 50

Shell types

AP · armour-piercing Damage 330 / 440 / 550

Penetration 194 / 258 / 323 mm

HEAT · shaped charge Damage 330 / 440 / 550

Penetration 255 / 340 / 425 mm

HE · high explosive Damage 398 / 530 / 663

Penetration 51 / 68 / 85 mm

Marks of Excellence

Damage thresholds

Combined Damage (Damage + Assist + Tracking)

Combined damage
1 Mark ≥ 65 %
2,714
2 Marks ≥ 85 %
3,947
3 Marks ≥ 95 %
5,099

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 1,645
Avg. spotted 0.87
Avg. kills 0.94
Avg. defence 0.59
Exp. win rate 51.73 %

Community stats

Measured, not estimated

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

Win rate

54.73 %

Avg. WN8

2,056

Battles

19,000

As of Aug 31, 2026

Rank 61 of 129 at Tier IX

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 Rasierer32 eu 4,732 70 60.00 %
2 Daddy eu 4,705 73 67.12 %
3 mailand eu 4,666 76 73.68 %
4 iyouxin eu 4,596 67 70.15 %
5 Yzne eu 4,448 178 67.98 %
6 skill4ltu eu 4,361 153 68.63 %
7 kjunik eu 4,037 56 75.00 %
8 Emperor_Jogi eu 3,918 66 68.18 %
9 Dualistiq eu 3,816 87 60.92 %
10 MR_Gunslinger eu 3,812 123 67.48 %

Commonly compared

Tank Meta MoE Tracker To the Hall of Tanks Compare with another tank