12.70x46mmR

NAME – 12.70x46mmR

NAME (COMMON) – 50-70, 50 Government Musket

TYPE – Rimmed, centerfire

YEAR OF INTRODUCTION – 1866

COUNTRY OF ORIGIN – USA

CASE TYPE – Rimmed straight

CARTRIDGE LENGTH – 57.2 mm (2.25 in)

CASING LENGTH – 44.5 mm (1.75 in)

CASE HEAD DIAMETER – 14.35 mm (0.565 in)

CASE RIM DIAMETER – 16.76 mm (0.660 in)

BULLET TYPE – Round nosed lead

BULLET DIAMETER – 13.13 mm (0.515)

BULLET WEIGHT – 29.61 g (457 gr)

POWDER WEIGHT – 4.54 g (70 gr)

CASING WEIGHT – 11.21 g (173 gr)

TOTAL ROUND WEIGHT – 45.36 g (700 gr)

MUZZLE VELOCITY – 338 m/s (1110 fps)

NOMINAL BARREL LENGTH – 101.6 cm (40 in)

MUZZLE ENERGY – 1695 j (1250 ft/lb)