What is ss deck gun ammo and what are the differences between the ammo types?

[Sailor Steve]

Originally Posted by FIREWALL

My simple take on ammo is.

AP for Warships with thicker armor on beltline of hull.

HE for thinner merchant hulls.

Incendiary for Tankers.

3 things of importance are, Availability, Year, and Deck gun size.

My only objection to that would be that the smallest warship to carry belt armor was the light cruiser, and then your 3.46" (8.8cm) deck gun is facing at least six 6" guns, fired from a ship with an actual gun director.

Not me, thanks.