NAME – 5.45×17.8mm

NAME (COMMON) – 5.45x18mm PSM Ball

TYPE – Rimless centerfire

YEAR OF INTRODUCTION – 1974

COUNTRY OF ORIGIN – USSR

CASE TYPE – Rimless bottlenecked

CARTRIDGE LENGTH – 24.8 mm (0.976 in)

CASING LENGTH – 17.8 mm (0.701 in)

CASE HEAD DIAMETER – 7.54 mm (0.297 in)

CASE RIM DIAMETER – 7.54 mm (0.297 in)

BULLET TYPE – Full jacketed ball

BULLET DIAMETER – 5.59 mm (0.220 in)

BULLET WEIGHT – 2.60 g (40.1 grains)

POWDER WEIGHT – 0.15 g (2.3 grains)

CASING WEIGHT – 2.05 g (31.7 grains) [Brass case]

TOTAL ROUND WEIGHT – 4.80 g (74.1 grains)

MUZZLE VELOCITY – 315 m/s (1033 fps)

NOMINAL BARREL LENGTH – 8.5 cm (3.346 in)

MUZZLE ENERGY – 129 j (95 ft/lb)