The guns were mounted on the Powerful-classcruisers from 1897 until their decommissioning. After they were decommissioned some of the guns were used in coast defence in the UK, and from 1916 on one was mounted on the monitorHMS Marshal Ney.
↑ 1.01.11.21.3Text Book of Gunnery 1902, Table XII Page 336
↑380 lb shell, with 63 lb cordite propellant size 40. Text Book of Gunnery 1902, Table XII page 336; Treatise on Ammunition 1915.
↑Mk VIII = Mark 8. Britain used Roman numerals to denote Marks (models) of ordnance until after World War II. Mark VIII indicates this was the eighth model of BL 9.2-inch naval gun.
References[]
Text Book of Gunnery, 1902. London: Printed for His Majesty's Stationery Office, by Harrison and Sons, St. Martin's Lane