40x46mm M585 White Star Cluster

NAME – 40x46mm M585 White Star Cluster

NAME (COMMON) – M585 White Star Cluster

CALIBER – 40x46mmSR

TYPE – Low velocity pyrotechnic signaling flare

YEAR OF INTRODUCTION – 1964

COUNTRY OF ORIGIN – USA

IDENTIFYING COLOR CODE – Brown or Green anodized cartridge case with black and yellow ink lettering, White projectile body with white cap, Raised letter “W” on top of cap along with 5 raised pips equidistant around the top of the cap.

CASE TYPE – M195 Semi-rimmed straight

CARTRIDGE LENGTH – 13.38 cm (5.27 in)

CASING LENGTH – 3 cm (1.18 in)

CASE HEAD DIAMETER – 41.2 mm (1.623 in)

CASE RIM DIAMETER – 43.60 mm (1.715 in)

PROJECTILE TYPE – Pyrotechnic carrier

PROJECTILE LENGTH – 11.13 cm (4.38 in)

PROJECTILE DIAMETER – 41.22 mm (1.623 in) at rotating band

PROJECTILE WEIGHT – 0.159 kg (5.61 oz)

POWDER WEIGHT – 0.330 g (5.09 grains)

FILLER – White illuminating candle composition contained in a phenolic-coated kraft paper cylinder with a central ignition hole. Five cylinders stacked in the projectile body on a nose-ejection charge

FILLER WEIGHT – 0.085 kg (3 oz), 0.017 kg (0.60 oz) per pellet

FUZE TYPE – Pyrotechnic, initiated on firing

FUZE DELAY – 5 seconds

CASING WEIGHT – 0.045 kg (1.5 oz)

TOTAL ROUND WEIGHT – 0.204 kg (7.2 oz)

MUZZLE VELOCITY – 76 m/s (250 fps)

NOMINAL BARREL LENGTH – 35.6 cm (14 in)

MAXIMUM ALTITUDE – 168 m (550 feet) at 85⁰

EFFECT – Candles burn for 7 seconds at 55,000 candlepower during free-fall

MANUFACTURER –

STATUS – Production

SERVICE – US Military

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