9mm Browning Long
>
The 9mm Browning Long, also known as the 9x20mmSR, is a military centerfire pistol cartridge developed in 1903 for the FN Model 1903 adopted by Belgium, France, Estonia, the Netherlands, and Sweden. Wikipedia
Bullet diameter: .3578" max. (9.09mm max.)
Designed: 1903
Overall length: 1.10 in (28 mm)
Place of origin: Belgium