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NAME – 40x53mm M677 High Explosive – Tracer

NAME (COMMON) – M677 HE-T

CALIBER – 40x53mm SR

TYPE – High explosive fragmentation with Tracer

YEAR OF INTRODUCTION –

COUNTRY OF ORIGIN – USA

IDENTIFYING COLOR CODE – Green or brown cartridge case with yellow markings, olive drab projectile body with yellow markings, gold ogive

CASE TYPE – M169 Semi-rimmed straight

CARTRIDGE LENGTH – 11.21 cm (4.415 in)

CASING LENGTH – 52.75 mm (2.077 in)

CASE HEAD DIAMETER – 41.25 mm (1.624 in

CASE RIM DIAMETER – 43.65 mm (1.719 in)

PROJECTILE TYPE – High velocity, ground burst, high explosive, internally segmented fragmentation with tracer element

PROJECTILE DIAMETER – 41.20 mm (1.623 in) at rotating band

PROJECTILE WEIGHT – 0.24 kg (8.5 oz)

POWDER WEIGHT – 4.64 g (76.1 grains) M2 Propellant

FILLER – Cyclotol 70/30

FILLER WEIGHT – 0.045 kg ( oz)

FUZE TYPE – M533 point detonating graze-sensitive

CASING WEIGHT – 0.095 kg (3.35 oz)

TOTAL ROUND WEIGHT – 0.34 kg (12 oz)

MUZZLE VELOCITY – 244 m/s (795 fps)

NOMINAL BARREL LENGTH – 41.3 cm (16.26 in)

MINIMUM (ARMING) RANGE – 18 to 36 m (59 to 118 feet)

MAXIMUM RANGE – 2,200 m (2,406 yards)

EFFECT – Blast and fragmentation

AREA OF EFFECT – 15 m (16 yard) radius

MANUFACTURER –

STATUS – Production completed

SERVICE – US Military and Allies

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