NAME – 9×23 Steyr

NAME (COMMON) – 9mm Steyr M1911

TYPE – Rimless centerfire

YEAR OF INTRODUCTION – 1911

COUNTRY OF ORIGIN – Austria

CASE TYPE – Rimless straight

CARTRIDGE LENGTH – 33 mm (1.30 in)

CASING LENGTH – 22.8 mm (0.90 in)

CASE HEAD DIAMETER – 9.70 mm (0.382)

CASE RIM DIAMETER – 9.70 mm (0.382)

BULLET TYPE – Full jacketed ball

BULLET DIAMETER – 9.02 mm (0.355 in)

BULLET WEIGHT – 7.52 g (116 grains)

POWDER WEIGHT – 0.49 g (7.5 grains)

CASING WEIGHT – 3.75 g (57.8 grains)

TOTAL ROUND WEIGHT – 11.75 g (181.3 grains)

MUZZLE VELOCITY – 341 m/s (1120 fps)

NOMINAL BARREL LENGTH – 13.2 cm (5.2 in)

MUZZLE ENERGY – 438 j (323 ft/lb)

     This round was only chambered in the M1911, M1912, and M1912/P1 weapons. As such, it was only seen in Austro-Hungarian military, as well as Rumania and Chile who purchased quantities of the M11912 Steyr pistols. The long round can be mistaken for other rounds of ammunition of the same general length, but the original Steyr loads were with a cupro-nickle jacketed bullet of a silver color.