Hector-class ironclad
... that completion of the Hector-class ironclad HMS Valiant was delayed for nearly five years by a shortage of rifled muzzle-loading guns?
... that completion of the <b id="mwDZE"><a href="./Hector-class_ironclad" id="mwDZI" rel="mw:WikiLink" title="Hector-class ironclad"><i id="mwDZM">Hector</i>-class ironclad</a></b> <a about="#mwt40" data-mw='{"parts":[{"template":{"target":{"wt":"HMS","href":"./Template:HMS"},"params":{"1":{"wt":"Valiant"},"2":{"wt":"1863"},"3":{"wt":"6"}},"i":0}}]}' href="./HMS_Valiant_(1863)" id="mwDZQ" rel="mw:WikiLink" title="HMS Valiant (1863)" typeof="mw:Transclusion">HMS<span typeof="mw:Entity"> </span><i>Valiant</i></a> was delayed for nearly five years by a shortage of <a href="./Muzzle-loading_rifle" id="mwDZU" rel="mw:WikiLink" title="Muzzle-loading rifle">rifled muzzle-loading guns</a>?