Does Nagato borrowed Yamato's equipment or does she use the triple 41cm turrets?
One of the other pages (later in the pool, but posted earlier) seems to show her being refitted with triple 46cm turrets (that's 18.1 inches in Church of England, same caliber as the Yamato-class ships), but as it's mostly untranslated I'm not 100% sure that's what's going on. It would make sense given how the previous operation panned out, though.