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Ordnance BL 7.5 inch gun Mk I
HMS Antrim Starboard 7.5 inch wing gun.jpg
Starboard wing gun on HMS Antrim
Type Naval gun
Place of origin United Kingdom
Service history
In service 1905 - 1920
Used by Royal Navy
Production history
Designer Vickers
Designed circa. 1901
Specifications
Barrel length 337.5 inches (8,572 mm) bore (45 calibres)

Shell 200 pounds (90.72 kg)
Calibre 7.5-inch (190.5 mm)
Muzzle velocity 2,700 feet per second (820 m/s)[1]

The BL 7.5 inch gun Mk I was a British 45 calibres medium-velocity naval gun which entered service with the Royal Navy in 1905.

History[]

This gun was only mounted on Devonshire class cruisers commissioned in 1905, and was quickly superseded by the 50-calibres 7.5 inch MK II gun.

See also[]

Notes[]

  1. 2700 ft/sec firing a 200-pound projectile: Brasseys Naval Annual 1902 using 61 lb cordite MD size 26 propellant : Treatise on Ammunition 1915

External links[]



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