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9mm Browning Long

Pistol cartridge designed by John Moses Browning

Pistol cartridge designed by John Moses Browning

FieldValue
name9×20mmSR Browning Long
image9mm long cartridge.jpgimage_size = 200px
originBelgium
typeSemi-automatic pistol
designerJohn Moses Browning
design_date1903
manufacturerFabrique Nationale de Herstal
production_date1903–1940s or 1950s
case_typeSemi-rimmed, straight
bullet.3578 in max. (9.09 mm max.)
land.3512 in nom. (8.92 mm max.)
neck.379 in nom. (9.68 mm max.)
base.380 in nom. (9.72 mm max.)
rim_dia.402
rim_thick.0492
case_length.795
length1.10
primerSmall pistol
bw1110
btype1FMJ
vel11000
en1240
bw2108
btype2FMJ
vel21150
en2316
balsrc*Rifles and Machine Guns* *Prvi Partizan*

The 9mm Browning Long, also known as the 9×20mmSR, is a military centerfire pistol cartridge developed in 1903 for the FN Model 1903 adopted by Belgium, France, Estonia, the Netherlands, and Sweden.

Description

9mm Browning Long is similar to 9×19mm Parabellum, but has a slightly longer casing and is semi-rimmed; the cartridge headspaces on the rim. The cartridge was developed by FN to be used in the blowback-operated FN Model 1903, a pistol designed using the same Browning patent as the Colt Model 1903 Pocket Hammerless. Using a more powerful cartridge, such as the 9×19mm Parabellum, would have required a locked-breech design. Ammunition was produced in Belgium, France, England, Sweden and the United States. There was some production in Germany during World War I for the Ottoman Empire, and the cartridge was also used in South Africa.

The cartridge is now regarded as obsolete and it might be hard to find reloadable brass for this ammunition; one option handloaders have is to take the .38 Super and shorten it to the right length.

Prvi Partizan in Serbia manufactures 9mm Browning Long ammunition. The Prvi full metal jacket bullet weighs 7 grams (108 gr.) with a muzzle velocity of 350 m per second. It is also currently manufactured by Mechanical and Chemical Industry Corporation of Ankara.

There is reloading data available on a few websites and in some handloading manuals, e.g. the Norwegian Ladeboken. Ladeboken:

  • Powder: 4.5 gr N340
  • Bullet: 110 gr Norma J
  • Length: 1.09 in
  • Velocity: 815 ft/s

References

References

  1. 9X20 browning long. Modern Firearms. (n.d.). https://modernfirearms.net/en/cartridge/9x20-browning-long/
  2. Boos, N. (n.d.). 9mm browning long (9X20MM) ammo. Southern Defense. https://southerndefense.com/handgun-ammo/9mm-browning-long-9x20mm/
  3. (September 23, 2008). "C.I.P. TDCC datasheet 9 mm Browning long". CIP.
  4. Melvin, M., Capt., USMCR. ''Rifles and Machine Guns'', p.385. New York,: William Morrow & Company, 1944.
  5. [http://www.prvipartizan.com/search_hb.php?id=A-164 Prvi Partizan]
  6. Janson, O. [http://www.gotavapen.se/gota/m07/pist07_1.htm "Browning pistol M1903 becomes Swedish Pistol m/1907"]
  7. Janson, O. [http://www.gotavapen.se/gota/m07/pist07_4.htm "Equipment, holsters and ammunition for m/1907"]
  8. Wilson, R. K. ''Textbook of Automatic Pistols'', pp.237–238. Plantersville, S.C.: Small Arms Technical Publishing Company, 1943.
  9. "9mm Browning Long". prvi partizan.
  10. [https://web.archive.org/web/20100104115652/http://gunloads.com/modules.php?name=Gunloads&cmd=Gunloads&did=1095 9mm Browning Long] loading data at Gun Loads website
  11. "Ladeboken web site".
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.

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