In the last decade of the 20th-century ownership of the collection held in the Rotunda passed to the Royal Artillery Historical Trust. The Royal Artillery Institution also donated its library and archives, as well as its medal collection.

In 2001, the entire collection was moved to the new “Firepower” museum at the Royal Arsenal. Firepower achieved Accredited Museum status, with the collection being designated for its national importance under the scheme run by Arts Council England. However, the museum did not achieve the footfall necessary to become financially sustainable.

In 2014 the decision was taken to close Firepower and create a new home for the collection on Salisbury Plain, close to the modern-day headquarters of the Royal Artillery at Larkhill, where Gunners have trained for over a century.

More information on the Royal Artillery Historical Trust can be found on their website