23×115mm

The 23×115mm round is used in Soviet (USSR)/Russian/CIS aircraft autocannon. Although superseded by the 30×165mm round the Russian Air Force still uses it in the GSh-23L (in the aircraft's tail turrets and in the UPK-23-250 gun pod) and the GSh-6-23 (in the Su-24). This round still serves in many countries and is widely available. The projectile weight is 175 grams.

23×115mm
23×115mm shells used in NR-23 cannon on the Il-28
TypeAutocannon, Antiaircraft
Place of originSoviet Union
Service history
In servicec.1944-present
Used byUSSR, various former Eastern Bloc countries
Production history
DesignerOKB-16
Designed1943
Specifications
Parent case14.5×114mm
Case typeRimless, bottlenecked
Bullet diameter23 mm (0.91 in)
Neck diameter24 mm (0.94 in)
Shoulder diameter26.26 mm (1.034 in)
Base diameter26.95 mm (1.061 in)
Rim diameter26.95 mm (1.061 in)
Case length115 mm (4.5 in)
Overall length204 mm (8.0 in)
Ballistic performance
Bullet mass/type Velocity Energy
175 g (2,701 gr) HEI 740 m/s (2,400 ft/s) 47,900 J (35,300 ft⋅lbf)
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