It appears that the ship is moving with the recoil in this picture. Seems to be fairly dramatic.
Maybe the wind is from starboard???
It appears that way.
But it is just the high pressure washing against the side of the ship on top of the water…..like a stiff breeze.
By actual calculation…….less than a millimeter
12.15 tons(9x2700) at 2300 fps against 57,000 tons ……4691:1……..against 850’ x 35’ in water
60 gr bullet at 2300 against a 40 lb rifle …… 4666:1……sliding on a leather bag
Doesn’t move 15’……..and the guns are seldom fired horizontally
Just an end point analysis to show scale
Yes…..it is a tremendous amount of energy……….but a battleship is quite the Fat Bottom Girl