23 mm caliber

23 mm caliber is a specific size of popular autocannon ammunition.

This ammunition size has been widely used in many conflicts worldwide. Examples of armaments using it are:

23×115mm caliber, used on many Soviet and Russian airplanes
23×122mm^[1]
23×139mmSR
23×152mmB caliber, used on Ilyushin Il-2 attack plane as well as on later Soviet anti-aircraft guns
23×260mm caliber, telescoped ammunition used on the Rikhter R-23 autocannon^[2]

Cartridges

(incomplete list)

Dimensions	Name	Date	Bullet diameter	Case length	Rim	Base	Shoulder	Neck	Cartridge length
23×152mmB
24.1×70mm	.950 JDJ		24.13mm (.950 in)	70mm (2.75 in)	29mm (1.14in)	29mm (1.14 in)	29mm (1.14 in)	26mm (1.023 in)	101.6 mm (4.00 in)

v t e Firearm cartridge calibers
By size (rifle caliber)	2 mm (.079 in) 3 mm (.118 in) 4 mm (.157 in) 5 mm (.197 in) 6 mm (.236 in) 7 mm (.276 in) 8 mm (.315 in) 9 mm (.354 in) 10 mm (.394 in) 11 mm (.433 in) 12 mm (.472 in) 13 mm (.512 in) 14 mm (.552 in) 15 mm (.590 in) 16 mm (.630 in) 17 mm (.669 in) 18 mm (.707 in) 19 mm (.748 in)
By size (cannon caliber)	20 mm caliber 23 mm caliber 25 mm caliber (ca 1.0 in) 30 mm caliber 35 mm caliber 37 mm caliber 40 mm caliber 45 mm caliber 50 mm caliber 57 mm caliber (ca 2.0 in) 75 mm caliber 76.2 mm caliber (ca 3.0 in) 88 mm caliber 90 mm caliber 100 mm caliber 120 mm caliber 122 mm caliber 125 mm caliber 130 mm caliber 149 mm caliber 152 mm caliber 155 mm caliber
Lists	List of cartridges by caliber List of handgun cartridges List of rifle cartridges List of rebated rim cartridges List of rimfire cartridges