re: #125 Political Atheist

Hey Dark, any idea what kind of shells are being used in this shot?

[Embedded image]

Weird smoke ring.

Those are proximity-fused HE/Frag shells. As Obdicut noted, they are used against aircraft and missiles. Any naval gun can use them, from the 20mm Phalanx AA gun to the 127mm (5 inch) cannon. Larger guns, such as the ones whose shells are seen in the photo, can also fire Armor-Piercing (AP) rounds and smoke rounds.