23×152mmB

23×152mmB
23×152mmB API (left) and HEI (right)
TypeAutocannon
Place of originSoviet Union
Service history
Used byHistorically: USSR, Warsaw Pact Contemporarily: second-, and third-world countries
Production history
Designed1941
Specifications
Case typeBelted, bottlenecked
Bullet diameter23 mm (0.91 in)
Neck diameter23.7 mm (0.93 in)
Shoulder diameter31.3 mm (1.23 in)
Base diameter33.2 mm (1.31 in)
Rim diameter34.6 mm (1.36 in)
Rim thickness33.4 mm (1.31 in)
Case length151 mm (5.9 in)
Overall length235.6 mm (9.28 in)
Maximum pressure2925 kgf/cm2
Ballistic performance
Bullet mass/type Velocity Energy
190 g (2,932 gr) BZ API 980 m/s (3,200 ft/s) 88,917 J (65,582 ft⋅lbf)
Test barrel length: 2008mm

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.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.