Well, for once, I’m posting a coast defense pic that isn’t Fort Casey. And that’s too small to be a 10″ mount. 6″ maybe?
Anybody know where this mount is?
At any event, you can see that when the gun is in the lower position, it’s ready to be loaded, and is simultaneously protected from direct fire of enemy warships by the parapet in front of it. After loading, counterweights lever the gun up to the battery (firing) position, where recoil will send it back down to the loading position.