What is wrong with fitting six guns in one battleship turret?
Short answerThe guns and mechanisms interact, so a sextuple mounting multiplies engineering problems far beyond the simple addition of six barrels.
NotesAmerican studies for battleship turrets carrying six guns prompt a rough rule of thumb: the number of interactions doubles with each added barrel. One gun brings one set of problems, three bring four, and six bring roughly thirty-two. The mounting's mechanisms therefore create system-level complexity rather than six isolated copies of the same task. A compact concentration of firepower can carry engineering risk that rises far faster than its gun count.