 Agincourt was rearmed in 1875 with a uniform armament of 17 nine @-@ inch guns , 14 on the main deck , 2 forward chase guns and 1 rear chase gun . The gun ports had to be enlarged to accommodate the larger guns by hand , at a cost of £ 250 each . About 1883 two six inches ( 152 mm ) breech @-@ loading guns replaced 2 nine @-@ inch muzzle @-@ loading guns . Four quick @-@ firing ( QF ) 4 @.@ 7 @-@ inch ( 120 @-@ mm ) guns , eight QF 3 @-@ pounder Hotchkiss guns , eight machine guns and two torpedo tubes were installed in 1891 – 2 . 
