Oh, yeah. I keep forgetting that a single turret assembly from the Big 7 weighs about as much as a contemporary-era destroyer.
Edit: No, wait. That was the Yamato gun turret. Nelson's guns only weigh a bit over 100 tons each.
Uh no, the gun BARRELS weigh about 100 tons each. The complete turret weighs about 1500 tons which is around the displacement of a treaty limited destroyer, but is somewhat less then some of the larger unrestricted designs.