The 23×152mmB is a large-caliber cartridge used by the USSR/CIS in the VYa-23 aircraft autocannon the Ilyushin Il-2 ground attack aircraft and in the 2A7 and 2A14 autocannons on the ZU-23-2 anti-aircraft gun series and ZSU-23-4 “Shilka”, among others.
The technical characteristics may have minor differences according to the different manufacturers of the given product. The manufacturers reserve the right to make changes to the specified parameters.
Caliber: 23×152 mm
Round length: from 234.36 to 237.16 mm
Round weight: 450 g approx
Projectile weight: 185.6 g approx
Primer: Percussion Primer No3
Average muzzle velocity, V0aver: 970 m/s
Average max Pressure at 15°C: Not more than 286.84 PmaxaverMpa
Penetration*, distance: at 700 m: 15 mm / at 1 000 m: 10 mm
Propellant type: 5/7 Cfl
Operational temperature range: from – 50°C to + 50°C
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