CODE – 04-131-871

NAME – 0.45 Inch Gatling Gun Mark I

COMMON NAMES – Armstrong Gatling Gun

COUNTRY OF ORIGIN – Great Britain

DATE OF MANUFACTURE – 1871

CALIBER – 11.43x60mmR (45 Gatling)

OVERALL LENGTH –139.5 cm (54.91 in)

BARREL LENGTH – 81.2 cm (31.95 in)

NUMBER OF BARRELS – 10

RIFLING (TYPE & TWIST) – Henry-style, 7 Groove, Right-hand twist, 1 turn in 55.9 cm (1 turn in 22 in)

LOAD – Paper-patched round nosed lead ball

BULLET DIAMETER – 11.48 mm (0.452 in)

BULLET WEIGHT – 31.10 g (480 grains)

MUZZLE VELOCITY – 407 m/s (1334 fps)

MUZZLE ENERGY – 2572 j (1897 ft/lb)

WEIGHT (EMPTY) – 191.4 kg (422 lb)

WEIGHT (LOADED) – 213.8 kg (471 lb 7 oz)

WEIGHT (MOUNTED) – 509.5 kg (1,123lb 4 oz)

TYPE OF MOUNT – Two-wheeled all-metal carriage

WEIGHT OF MOUNT – 295.7 kg (652 lb)

SIGHTS – Open, iron, adjustable, Front sight – Inverted V point, Rear sight – V-notch on vertical rod, graduated for range

EFFECTIVE RANGE – 2195 m (2400 yards)

OPERATION – Manual

TYPE OF FIRE – Full automatic

RATE OF FIRE – 400 rpm – maximum, 200 rpm – practical

CYCLIC ROF – 600-700 rpm

FEED DEVICE – 240 round Broadwell drum

FEED DEVICE WEIGHT (EMPTY) – 9.98 kg (22 lb)

FEED DEVICE WEIGHT (LOADED) – 22.42 kg (49 lb 5 oz)

BASIC AMMUNITION LOAD – Three drums (720 rounds)

LOAD WEIGHT – 67.26 kg (148 lb 5 oz)

MANUFACTURER – Sir W. G. Armstrong & Co., Elswick Ordnance Works, Newcastle-upon-Tyne, England

STATUS – Obsolete

SERVICE – British Army, Navy, and Commonwealth forces