The 10-inch BL gun came in four Marks (I to IV) and was introduced in 1885. It actually had a calibre of 10.4-inchs. The Mark I was an Elwick Ordnance design while the other three marks were manufactured at Woolwich Arsenal. The guns were usually mounted in a barbette with a central pivot, similar to the early 9.2-inch guns. There was also a disappearing (HP) carriage designed for the gun. The 10-inch BL gun had an effective range of 10,000 yards. Originally intended for use by the Royal Navy, the 10-inch gun was used by the British in coast defence batteries around the World.
10-inch Breech Loading Gun
INDIAN OCEAN
- Australia
- Point Franklin 1888-1910
- Eagles Nest 1890-1910
- Aden
- Fort Morbut 1892-1924
- Fort Tarshayne 1892-1924
- Pakistan & India
- Karachi
- Manora Fort 1893-1910
- Marsh Fort 1893-1910
- Bombay
- Mahaluzmi Battery 1893-1925
- Malabar South Battery 1893-1925
- Colaba South Battery 1893-1918
- Oyster Rock Battery 1893-1918
- Middle Ground Battery 1893-1918
- Karachi
- Port Louis, Mauritius
- Albert Battery
- Victoria Battery
HOME WATERS
- Portsmouth
- Puckpool Battery on the Isle of Whyte, 1892-1900
- Plymouth
- Raleigh Battery 1894-1908
- Sheerness
- Central Bastion, Sheerness Lines 1892-1907
- Isle of Grain Fort 1892-1907
- Coalhouse Fort
- East Tilbury Battery 1892-1907
- Milford Haven
- South Hook Fort 1893-1902
- Harwich
- Shotely Point Battery
- Beacon Hill Fort
- Landguard Left Wing Battery 1892-1906
- Landguard Right Wing Battery 1902-1907
MEDITERRANEAN
- Malta
- Della Grazia Battery
- Cavalier at Fort St Elmo
PACIFIC OCEAN
- Singapore
- Mount Palmer 1892-1910
- Hong Kong
- West Battery, Stonecutters Island 1893-1911
- Central Battery. Stonecutters Island 1891-1910
- Upper Belchers Battery, Western District of Hong Kong Island 1892-1912
- Fly Point Battery, Western District of Hong Kong Island 1892-1911
ATLANTIC OCEAN
- Halifax, Canada
- Fort McNabb 1892-1911
In general terms the 10-inch BL gun remained in service from about 1890 until just before the outbreak of World War I.