 Prior to 1895 two 6 @-@ inch ( 200 mm ) breech @-@ loading guns had been imported for use in small boats . This use was rejected by military authorities and the guns sat unused . In 1895 the South Australian Defence Committee proposed that the guns be mounted at Fort Glanville , replacing the 64 @-@ pounders whose siege carriages were then unfit for service . This proposal would have greatly extended the useful life of the fort , at little cost . The two military branches , army and navy , could not reach agreement and the proposal was abandoned by 1897 . The gun 's eventual fate is unknown , though a gun found in the Port River later indicates they may have been dumped . 
 Prior to 1895 two 6 @-@ inch ( 200 mm ) breech @-@ loading guns <a href='been_done' title='1'><mark>had</mark></a> been imported for use in small boats . This use was rejected by military authorities and the guns sat unused . In 1895 the South Australian Defence Committee proposed that the guns be mounted at Fort Glanville , replacing the 64 @-@ pounders whose siege carriages <a href='uninflect' title='2'><mark>were</mark></a> then unfit for service . This proposal would <a href='been_done' title='3'><mark>have</mark></a> greatly extended the useful life of the fort , at little cost . The two military branches , army and navy , could not reach <a href='negative_concord' title='4'><mark>agreement</mark></a> and the proposal was abandoned by 1897 . The gun <a href='null_genetive' title='5'><mark>'s</mark></a>eventual fate <a href='drop_aux' title='6'><mark>is</mark></a>unknown , though a gun found in the Port River later <a href='uninflect' title='7'><mark>indicates</mark></a> they may <a href='been_done' title='8'><mark>have</mark></a> been dumped . 
Prior to 1895 2 6 @-@ inch ( 200 mm ) breech @-@ loading guns done been imported fir use in small boats . This use was rejected by military authorities and the guns sat unused . In 1895 da South Australian Defence Committee proposed dat the guns be mounted at Fort Glanville , replacing tda64 @-@ pounders whose siege carriages was then unfit fir service . This proposal would done greatly extended the useful life of the fort , at little cost . Thdawo military branches , army and navy , could not reach no agreement and the proposal was abandoned by 1897 . The gun  eventual fate unknown , though a gun found in the Port River later indicate they may done been dumped .