23×115mm

23x115 mm cartridge
Type	Aircraft Antiaircraft
Place of origin	Soviet Union
Specifications
Bullet diameter	23 mm (0.91 in)
Case length	115 mm (4.5 in)

The 23x115 mm round is used by Soviet(USSR)/Russian/CIS aircraft autocannon, most notably by the GSh-23L and GSh-6-23. Although the round has been superseded by the 30x165 mm round, the Russian Air Force still uses it in the GSh-23L (in aircraft's tail turrets and in the UPK-23-250 gunpack/gunpod) and GSh-6-23 (used in Su-24). This round still serves in many countries and is widely available.

History

The round was derived from the 14.5×114mm round by necking it out to 23mm.^[1] The original rounds used a lower power charge of 33g of sw 4/7 powder and achieved only 690 m/s at a maximum pressure of 294,3MPa. In 1954 an improved ammunition was introduced, featuring better projectile design and ballistic properties. The newer rounds have a powder charge to achieve 720 m/s.^[2]

Weapon Platforms

• Nudelman-Suranov NS-23, used in An-2, Il-10, Il-22, La-7, La-15, MiG-9, Yak-7, Yak-9U, Yak-15, Yak-17, and Yak-23 planes.
• Nudelman-Rikhter NR-23, used in MiG-15, La-15, MiG-17.
• Afanasev Makarov AM-23, used in Tu-16, Tu-95, Il-54 bombers, and An-8, An-12, Il-76 transports.
• Gryazev-Shipunov GSh-23, used in MiG-21, MiG-23, SOKO J-22 Orao, HAL Tejas, IAR 93 fighters, Tu-22M and Tu-95 bombers, W-3WA Sokół helicopter, Il-76 transport and in the UPK-23-250 gunpods.
• Gryazev-Shipunov GSh-6-23, used in Su-15, Su-24, MiG-31 and early versions of the MiG-27.

See also

• 23x152 mm, one variant used in the VYa-23 on the Ilyushin Il-2 ground attack aircraft, and a different variant in the later Soviet anti-aircraft autocannon series (ZSU-23-4, ZU-23, etc.)

External links

• An example of three 23mm NS/NR series cartridges
• http://www.quarry.nildram.co.uk/ModernAC.jpg
• http://www.airforce.ru/information/files/weapon/guns/gsh23_big.jpg

References

• Koll, Christian (2009). Soviet Cannon - A Comprehensive Study of Soviet Arms and Ammunition in Calibres 12.7mm to 57mm. Austria: Koll. p. 131. ISBN 978-3-200-01445-9.