 Both types of heavy guns used where the only ones of their specific series and type to come to Australia . Though they were never fired in anger , the battery is only 40 feet ( 12 m ) above mean sea level which would have limited the accuracy of the mark III depression rangefinders used . 
 Both types of heavy guns used where the only ones of their specific series and type to come to Australia . Though they <a href='uninflect' title='1'><mark>were</mark></a> never fired in <a href='negative_concord' title='2'><mark>anger</mark></a> , the battery <a href='drop_aux' title='3'><mark>is</mark></a>only 40 feet ( 12 m ) above mean sea level which would <a href='been_done' title='4'><mark>have</mark></a> limited the accuracy of the mark III depression rangefinders used . 
Both types of heavy guns used where the only ones of their specific series and type to cum to Australia . Though they was never fired in no anger , da battery only 40 feet ( 12 m ) above mean sea level which would done limited the accuracy of the mark III depression rangefinders used .