Talk:QF 4.7inch Gun Mk.XII Kai/@comment-30594428-20180223161031/@comment-26082284-20180322182445

Some guns (like this or 12.7cm HA late model) have ASW stat to reflect use of anti-submarine munition. Shape of such ammo was optimised for hydrodynamic rather than aerodynamic and in some tests they were shown to be able to penetrate rigid hull after travelling up to 10 meters through the water. In theory that give DD capacity to engage periscope-depth subs at distances significantly longer than depth charge thrower. In practice... as far as I know there's no record of such ammo ever being sucessfully used.

I think it's more of an in-joke, but at least it shows that devs did their homework.