In 1855, the War Office took over responsibility for manufacture and storage of weapons from the Ordnance Office, which was gradually phased out of the castle.
1855. aastal võttis Briti sõjaministeerium (the War Office) Lahingumoona Nõukogult (The Board of Ordnance) relvade tootmise ja hoiustamise vastutuse, mis viidi tasapisi lossist välja.