In short:
Times on the left in (brackets) are timed on distinct, easy-to-find frames when the gun is ready to fire and when it's recharging.
Times on the right are new timers that take the (apparent) delay that exists after a skill starts reloading (while the animation isn't yet complete, in fact) but the shell hasn't spawned yet. These times take the end frame as when the shell spawns out of the gun.

As before, there's roughly 1 frame margin of error (~0.015s) for all times listed due to the framerate the game runs at.
The arrows in brackets on the right indicate if the ship is slower or faster than the original time, removing the (roughly estimated) additional ~0.100s across all(?) BBs before the shell has actually spawned. (↓) means animation became longer, (-) means unchanged or effectively unchanged. Do note that A LOT of listed times becoming longer may be purely due the 1 frame margin of error.

(0.200s) -> 0.300s -> Kirishima (-)
(0.216s) -> 0.316s -> Erebus (Skin) (-)
(0.233s) -> 0.367s -> DoY (↓)
(0.316s) -> 0.417s -> Mikasa (-)
(0.417s) -> 0.550s -> Hood (Marriage) (↓)
(0.500s) -> 0.633s -> Nelson (↓)
(0.500s) -> 0.600s -> Hood (Summer) (-)
(0.533s) -> 0.633s -> Renown (-)
(0.533s) -> 0.667s -> Yamashiro (Christmas) (↓)
(0.550s) -> 0.667s -> Yamashiro (Default) (↓)
(0.550s) -> 0.684s -> Yamashiro (Summer) (↓)
(0.550s) -> 0.684s -> Hyuuga (↓)
(0.583s) -> 0.734s -> Queen Elizabeth (↓)
(0.600s) -> 0.734s -> Rodney (Default) (↓)
(0.600s) -> 0.717s -> Prince of Wales (↓)
(0.633s) -> 0.800s -> Erebus (Default) (↓)
(0.650s) -> 0.784s -> Tirpitz (↓)
(0.617s) -> 0.734s -> South Dakota (↓)
(0.667s) -> 0.800s -> Arizona (↓)
(0.684s) -> 0.784s -> Hood (Default) (-)
(0.767s) -> 0.900s -> Warspite (↓)


* Note: South Dakota (with the "old" timing system) was timed incorrectly and has been fixed. Was 0.650, is actually 0.617.