| 9×20mmSR Browning Long | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | ||||||||||||
| Type | Semi-automatic pistol | |||||||||||
| Place of origin | Belgium | |||||||||||
| Production history | ||||||||||||
| Designer | John Moses Browning | |||||||||||
| Designed | 1903 | |||||||||||
| Manufacturer | Fabrique Nationale de Herstal | |||||||||||
| Produced | 1903–1940s or 1950s[1][2] | |||||||||||
| Specifications | ||||||||||||
| Case type | Semi-rimmed, straight | |||||||||||
| Bullet diameter | .3578 in max. (9.09 mm max.[3]) | |||||||||||
| Land diameter | .3512 in nom. (8.92 mm max.[3]) | |||||||||||
| Neck diameter | .379 in nom. (9.68 mm max.[3]) | |||||||||||
| Base diameter | .380 in nom. (9.72 mm max.[3]) | |||||||||||
| Rim diameter | .402 in (10.2 mm) | |||||||||||
| Rim thickness | .0492 in (1.25 mm) | |||||||||||
| Case length | .795 in (20.2 mm) | |||||||||||
| Overall length | 1.10 in (28 mm) | |||||||||||
| Primer type | Small pistol | |||||||||||
| Ballistic performance | ||||||||||||
| ||||||||||||
| Sources:Rifles and Machine Guns[4]Prvi Partizan[5] | ||||||||||||
The9mm Browning Long, also known as the9×20mmSR, is a militarycenterfire pistol cartridge developed in 1903 for theFN Model 1903 adopted by Belgium, France, Estonia, the Netherlands, and Sweden.[6]
9mm Browning Long is similar to9×19mm Parabellum, but has a slightly longer casing and is semi-rimmed; the cartridgeheadspaces on the rim. The cartridge was developed by FN to be used in theblowback-operatedFN Model 1903, a pistol designed using the same Browning patent as theColt 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[7] and the United States. There was some production in Germany duringWorld War I for theOttoman Empire, and the cartridge was also used in South Africa.[8]
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.[citation needed]
Prvi Partizan in Serbia manufactures 9mm Browning Long ammunition. The Prvifull metal jacket bullet weighs 7 grams (108 gr.) with a muzzle velocity of 350 metres (1,150 ft) per second.[9] It is also currently manufactured byMechanical and Chemical Industry Corporation ofAnkara.
There is reloading data available on a few websites[10] and in somehandloading manuals, e.g. the Norwegian Ladeboken.[11]Ladeboken: