I just aquired a copy of Norman Friedman's
Naval Firepower: Battleship Guns and Gunnery in the Dreadnought Era. Despite the title, it's not about guns or firepower at all, but about the development of Fire Control in various navies, which is why I bought it. When I started looking through it I found something I'd never seen before: A photograph of a battleship actually being straddled by a salvo from another battleship.
The date is March 22, 1923. The target is the ex-battleship USS
Iowa (BB-4), now a remote-controlled target drone, and the firing ship is USS
Mississippi (BB-41).
Iowa has been straddled but not hit, and this is what it really looks like.