NAME – 40x46mm M781 Practice

NAME (COMMON) – M781 Practice

CALIBER – 40x46mmSR

TYPE – Low velocity, impact-indicating, practice round

YEAR OF INTRODUCTION –

COUNTRY OF ORIGIN – USA

IDENTIFYING COLOR CODE – White cartridge case with white ink markings, Blue projectile body with white ink markings

CASE TYPE – M212 Semi-rimmed straight walled

CARTRIDGE LENGTH – 10.3 cm (4.05 in)

CASING LENGTH – 46.2 mm (1.819 in)

CASE HEAD DIAMETER – 41.20 mm (1.622 in)

CASE RIM DIAMETER – 43.61 mm (1.717 in)

PROJECTILE TYPE – Flat-nosed plastic-bodied projectile with zinc-alloy core and base

PROJECTILE DIAMETER – 41.05 mm (1.616 in) at rotating band

PROJECTILE WEIGHT – 0.173 kg (6.10 oz)

POWDER WEIGHT – 0.340 g (5.25 grains) M9 double-base flake mortar powder

FILLER – Yellow dye powder with RDX booster

FUZE TYPE –None

CASING WEIGHT – 0.032 kg (1.13 oz)

TOTAL ROUND WEIGHT – 0.205 kg (7.23 oz)

MUZZLE VELOCITY – 76 m/s (249 fps)

NOMINAL BARREL LENGTH – 35.6 cm (14 in)

MAXIMUM RANGE – 400 m (437 yards)

EFFECT – Ground burst of orange dye marker at point of impact

MANUFACTURER –

STATUS – Production

SERVICE – US Military