It is located on Ministry of Defence property at the Upper Rock Nature Reserve, north of Lord Airey's Battery.

By the late twentieth century, the 9.2-inch guns in Gibraltar, Bermuda (also known affectionately as "the Rock", and the former site of a Royal Naval Dockyard, and once considered "the Gibraltar of the West"), Portugal, South Africa, and Australia were the remaining examples of an emplacement that at one point had been mounted at strategic locations across the British Empire.

Breakneck Battery is in Gibraltar, the British Overseas Territory at the southern end of the Iberian Peninsula.

After that explosion on 2 January 1879, a Committee on Ordnance was founded to analyze the United Kingdom's artillery and the direction that it would take.

[11] A shell store and bombproof shelter for the crew are located beneath the gun position, excavated from the solid rock.

X variants still surviving in the "Gibraltar of the West", Bermuda (two at St. David's Battery; one at Fort Victoria), by 1981, the year that the gun at the latter emplacement, Spur Battery, was dismantled for transfer to England in Project Vitello, Gibraltar's 9.2-inch guns represented three of the 25 remaining examples of a weapon that had at one time been mounted at strategic locations across the British Empire and its allies.

[16] For years, the Upper Ridge batteries were an excluded area in Gibraltar, where entry by the public was considered a criminal offence.

In addition to training and guard duties, the soldiers participated in community projects, including refurbishing of the coastal artillery gun at Breakneck Battery.