ORIGINAL: mlees
I've read that there was at least one inter-war British battleship which suffered structural damage when firing full salvoes.
The British Nelson class, with the three main turrets all mounted forward of the superstructure, suffered bridge superstructure damage when the main guns were trained too far aft.
This was due to a stupid gun setup. the two first guns where on elevated platforms, but the last was not. This meant that the rearmost gun could not fire on the enemy if it was directly in front or to the rear of Nelson. But in a broadside it could bring all the guns in. This oviusly stupid gun setup was latter reguarded as major screw up.
Andi.
Edit:typos.