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9×23mm Steyr

Austro-Hungarian pistol cartridge

Field	Value
name	9×23mm Steyr
image	9x23mm Steyr.jpg	image_size = 100px
origin	Austria-Hungary
type	Pistol
used_by	Austro-Hungarian Army
designer	Œ.W.G.
production_date	1911
is_SI_specs	yes
case_type	Rimless, straight
bullet	9.03
neck	9.62
base	9.70
rim_dia	9.70
rim_thick	1.25
case_length	23.20
length	32.99
primer	Small pistol
bw1	115
btype1	FMJ
vel1	1025
en1	268
bw2	115
btype2	FMJ
vel2	1080
en2	298
bw3	115
btype3	FMJ
vel3	1230
en3	388
test_barrel_length	128 mm
balsrc	1. Hornady; 2. Fiocchi; 3. Hirtenberger

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-Hungary during World War I and remained the service ammunition for Austria, Romania and Chile between the World Wars. Some MP 34 submachine guns were also issued in this caliber in addition to 9×25mm Mauser. When the Austrian Army was incorporated in the Wehrmacht in 1938 following the Anschluss, many Steyr M1912 pistols and MP 34 submachine guns were rebarrelled to 9×19mm Parabellum for standardization purposes.

Design

The cartridge headspaces on the mouth of the case. Its performance is close to that of the .38 ACP. Unrelated to the modern 9×23mm Winchester, it is similar to the 9×23mm Largo cartridge in performance, but their dimensions are just different enough to make them non-interchangeable.

Handloading

For handloading, reloadable Boxer-primed cartridge cases can be made from 5.56×45mm NATO brass. This requires inside neck-reaming, as such a conversion would otherwise leave unacceptably thick mid-to-rear case walls from the original cartridges to form the mouths of the new, shortened cases. At least one commercial source apparently can produce such a forming die set, complete with reamer. Loading data would be much like .38 ACP.

Gallery

Image:Steyr Hahn M1912.JPG|Steyr M1912 pistol with holster and 9×23mm Steyr ammunition on stripper clips Image:Steyr-Hahn M1912.JPG|Steyr M1912 pistol with box and stripper clip of 9×23mm Steyr ammunition Image:9x23mm_Largo_comparison.jpg|Left to right: 9×23mm Largo, 9×19mm Parabellum, 9×23mm Winchester, and 9×23mm Steyr

References

"9mm Largo vs. Others".
*Wilson, R. K. ''Textbook of Automatic Pistols'', p.235. Plantersville, S.C.: Small Arms Technical Publishing Company, 1943.
Jeff, John. (August 2009). "Q&A". [[Guns Magazine]].
"Ok to use .223 brass for 9x23?".
"5.56 to 9x23 brass".

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

pistol-and-rifle-cartridges military-cartridges weapons-and-ammunition-introduced-in-1911

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