Pistol · Obsolete

9mm Browning Long

9x20mmSR Browning9mm Long

Semi-rimmed 9mm cartridge designed by John Browning for the FN Model 1903 pistol.

Caliber
0.3579″ · 9.09 mm
Introduced
1903
Case
Semi-Rimmed
Primary use
Military
Status
Discontinued
Velocity1,050–1,100 fps
Energy269–295 ft·lb
Typical grains108 · 110 gr
Identity
Introduced
1903
Type
Pistol
Origin
Belgium
Inventor
John Browning / FN
Manufacturer
FN Herstal
Standard
Obsolete
Status
Discontinued
Availability
Collector
Build
Case capacity
12.5 gr H₂O
Twist (typical)
1:10
Primer
Small Pistol
Case type
Semi-Rimmed
Pressure & range
Max pressure
23,931 psi
Eff. range
50 yd
Max range
100 yd
Recoil
3–5 ft·lb
Subsonic
Capable

Ballistics

Representative trajectory · 25 yd zero0–200 yd
25 yd · zero0″−50″50″ drop @ 200 yd0100200Open in Ballistic Compare ↗
By real loads
1,050–1,100 fps · 8 loads
Parent case

Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).

Performance

Best for TargetSellier & Bellot Standard108 gr · FMJ · 1,083 fpsBuy now →

Buy links open 9mm Browning Long ammunition at Rivertown Munitions.

Dimensionscase measurements · scale drawing · size vs familiar rounds

Case dimensions — the scale drawing at the top of the page is built from these.

CIP TDCC · verified
Measuremmin
Bullet ⌀9.090.358
Neck ⌀9.680.381
Shoulder ⌀n/a
Shoulder anglen/a
Base ⌀9.720.383
Rim ⌀10.200.402
Belt ⌀n/a
Rim thickness1.250.049
Neck lengthn/a
Case length20.200.795
Overall length28.001.102

Size vs familiar rounds

Drawn at true 1:1 — every case is accurate relative to the others. Absolute size depends on your screen's pixel density, so measuring one against a real ruler may be off. 9mm Browning Long is highlighted below.

Factory loads

In production — 8 active loads across 5 brands. Top 15 shown · see all 19 →.

BrandLoadGrainBulletFPSft·lbBC
NormaSafeguard110FMJ1,100295
FiocchiRange110FMJ1,100295
PPURange110FMJ1,100295
Sellier & BellotSport110FMJ1,100295
KynochStandard110FMJ1,100295
Sellier & BellotStandard108FMJ1,083281
Sellier & BellotFMJ Service110FMJ1,050269
FiocchiFMJ Service110FMJ1,050269
FN HerstalStandard108FMJ1,083281
FN HerstalFMJ Service Original110FMJ1,050269
WolfFMJ108FMJ1,050264
PPUStandard108FMJ1,050264
Buffalo ArmsCustom108FMJ1,050264
NormaClassic108FMJ1,050264
RWSClassic108FMJ1,050264

Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.

Reloading costestimate cost per round vs factory

Estimate your cost per round and how it compares to factory. Inputs are yours — nothing is stored.

Cost estimate only — not load data. Charge weight is your input; follow published manuals for safe charges.

Firearms chambered in 9mm Browning Long

6 models in the database chamber 9mm Browning Long. Browse all →

Astra Model 400 9mm LargoVarious Spanish Astra 400 9mm Largo 5.9-inchHusqvarna Model 1907FN Herstal FN Model 1903 9mm Browning LongFN Herstal FN Browning 1903 Swedish ExportFabrique Nationale d'Armes de Guerre FN Model 1903 9mm Browning Long

Lineage

Immediate parent
Root — no documented parent
Direct descendants (1)
Family TreeOpen 9mm Browning Long in the interactive cartridge family tree

Connected reference

History

Developed by John Browning for FN's Model 1903 semi-automatic pistol. The Swedish military adopted the M1903 as the Pistol m/07 and used the 9mm Browning Long as their standard service pistol cartridge from 1907 until 1940, when they transitioned to 9mm Luger. The cartridge was also adopted by the Belgian Gendarmerie. Swedish military ammunition is common in European collections; factory production has entirely ceased.

FAQs

What twist rate does 9mm Browning Long use?
9mm Browning Long typically uses a 1:10 twist rate.
What bullet diameter is 9mm Browning Long?
9mm Browning Long uses a 0.3579″ (9.09 mm) diameter bullet.
Is 9mm Browning Long still in production?
9mm Browning Long is discontinued; typical availability is collector.
What is 9mm Browning Long used for?
9mm Browning Long is primarily used for military.

Sources & provenance

Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 8 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →