RML 11-inch 25-ton guns were large rifled muzzle-loading guns used as primary armament on British battleships and for coastal defence. They were effectively the same gun as the RML 12-inch 25-ton gun,
Disappearing gun on HMS Temeraire in firing position
Mark I & II gun construction
Mk II gun at Fort Nelson, Portsmouth, UK
RML 11-inch 25-ton gun at Fort George in St. George's, Bermuda.
The RML 9-inch guns Mark I – Mark VI were large rifled muzzle-loading guns of the 1860s used as primary armament on smaller British ironclad battleships and secondary armament on larger battleships, a
Restored Mark I, RML 9-inch 12-ton gun being fired at Simon's Town in 2014, with replica ammunition in the foreground
Diagrams showing the progressive changes in the gun's construction
Former gun positions at Verne High Angle Battery, Portland, England
Spy Glass Battery, Gibraltar