23×152mmB
# 23×152mmB

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.

Note that the ammunition for the VYa-23 uses a brass case and is not functionally interchangeable with the steel-cased ammunition of the modern ZU-23 anti-aircraft gun series. These two weapons use different headspace sizes, therefore requiring ammunition of slightly different dimensions. While it is no longer in use in the main anti-aircraft weapons of modern Russia, being replaced by the 30×165mm, it is still in service with the Russian Naval Infantry and many other countries.

## Specifications

| Dimensions: | 23×152mm Belted |
| - | - |
| Muzzle Velocity: | 970-980 m/s (from 2A7 & 2A14) 3182-3215 fps |
| Bullet Weight: | 184–190 grams |
| Bullet Types: | OZ/OFZ (HEI), OZT/OFZT (HEI-T), BZ/BZT (API/API-T) |
| Weapon Systems: | Volkov-Yartsev VYa-23, 2A7, 2A10, 2A14. |
| Applications: | ZU-23, ZSU-23-4 "Shilka", BMP-23, BTR-94, others. |
| Energy: | ~88916.64 J (estimated) ~65581.54 ft lbs (estimated) |

Iran has produced the Baher anti-material rifle chambered for this round. The stated purpose is to take down helicopters and vehicles.

