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125 mm KBA3 tank gun is installed in main battle tanks Oplot and T-80UD.
It is successfully used when modernizing armoured vehicles, for example, tanks T-62.
It serves to:
- to defeat tanks and other armoured vehicles of the enemy;
- to suppress and destroy fire support means and personnel of the enemy.
KBA3 gun can fire separate-loading ammunition, including:
- guided missiles (GM)
- armour-piercing discarding sabot fin-stabilized projectile (APDSFS)
- high-explosive antitank projectile (HEAT)
- high explosive-fragmentation projectile (HE-FRAG)
- air-bust fragmentation-shrapnel projectile (ABFS)
Specifications of the gun
| Designation |
KBA3 |
| Calibre |
125 mm |
| Type |
smoothbore gun |
| Breech-block type |
semiautomatic with horizontal placement of the wedge |
| Gun length |
6678 mm |
| Barrel length |
6000 mm (L48) |
| Normal recoil length |
260 to 300 mm |
| Maximum possible recoil length (STOP) |
310 mm |
| Initial pressure in the recuperator |
59 to 62 kgf/cm2 |
| Number of recoil brakes |
2 |
| Placement of recoil brakes |
symmetrical relative to the gun bore axis |
| Number of recuperators |
1 |
| Resistance to recoil |
98000 kgf |
| Gun weight |
2500 kg |
| Weight of gun recoiling part |
1900 kg |
| Muzzle velocity (when firing 3VBM17 "MANGO"
armour-piercing round) |
1700 m/s |
| Maximum acceptable calculated gas pressure in charge chamber |
6500 kgf/cm2 |
| Gas pressure in charge chamber (when firing 3VBM17 "MANGO") |
5660 kgf/cm2 (at t=15°C) |
| Horizontal dispersion (APDSFS and HEAT at 2000m range) |
0.2 mils |
| Vertical dispersion (APDSFS and HEAT at 2000 m range) |
0.2 mils |
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125 mm KBA3 tank gun
KBA3 tank gun
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