9×23mm may refer to one of the following pistol cartridges:
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9×23mm Largo
The 9×23mm Largo (9mm Largo, 9mm Bergmann–Bayard, 9mm Bayard Long) centerfire pistol cartridge was developed in 1903 for the Bergmann–Bayard pistol. It was adopted by the Spanish and Danish militaries, with the former using it until the 1 ...
, introduced c. 1901
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9×23mm Steyr
The 9×23mm Steyr, also known as 9mm Steyr, is a centerfire pistol cartridge originally developed for the Steyr M1912 pistol.
History
Adopted in 1912, the 9mm Steyr was the service ammunition for most branches of the military in Austria-Hung ...
, introduced c. 1911
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9×23mm Winchester
The 9×23mm Winchester is a pistol cartridge developed as a joint venture by Winchester Ammunition and Colt's Manufacturing Company. The 9×23mm Winchester has a convoluted development history, but was commercially introduced by Winchester in 19 ...
, introduced c. 1996
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.38 ACP, introduced c. 1900
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.38 Super, introduced c. 1929, which is a higher pressure loading of the .38 ACP pistol cartridge
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