RML 64-pounder 64 cwt gun

The RML 64-pounder 64 cwt gun is a Rifled, Muzzle Loading (RML) naval, field or fortification artillery gun manufactured in England in the 19th century, which fired a projectile weighing approximately 64 pounds (29 kg). "64 cwt" refers to the gun's weight rounded up to differentiate it from other "64-pounder" guns.

RML 64-pounder 64 cwt gun
Fortification mounted MK III gun firing at Fort Glanville Conservation Park, South Australia
TypeNaval gun
Fortification gun
Place of originUnited Kingdom
Service history
In service1865–190?
Used byBritish Empire
Production history
DesignerWoolwich Arsenal
Designed1864
ManufacturerWoolwich Arsenal
Elswick Ordnance Company
VariantsMk I, II, III
Specifications
Mass64-long-hundredweight (3,300 kg)
Length9.83 in (25.0 cm)
Barrel length97.5 in (248 cm) bore

Shell64 pounds (29 kg)
Calibre6.3 inches (160 mm)
ActionRML
BreechMuzzle-loading
Muzzle velocityWrought-iron tube : 1,252 feet per second (382 m/s)
Mk III steel tube : 1,390 feet per second (420 m/s)
Effective firing range5,000 yards (4,600 m)
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