A 68 pounder from 1853. This was one of the largest and last of the smooth-bore cannons. it is thought to have taken part in the siege of Sebastopol in the Crimea.
A 9 inch RML gun from 1868. This was one of the first rifled muzzle loading gunsand guns like this may have been stationed at Southsea Castle. The one currently on display was taken from an artillery battery on the Isle of Wight.

A large Canon which could be moved on a wheeled framework to increase the arc of fire. The mechanism is similar to that used on the bow and stern chasers seen on HMS Warrior.

