the United States navy 5"/54 cal Mark 16 dual purpose guns are bugged/nerfed to do only 45 damage using AA shells. Combined with its rate of fire its about 25% at effective as the 5/38 dual purpose gun.
Checking other nations' and even other USN 5inch guns, this damage is far too low with the next weakest gun doing 79damage.
The damage should be between 80 and 100 per shell.
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Ive heard an argument that its not designed for anti-aircraft gun. Thats wrong as its a DUAL PURPOSE Gun, like other high-angle guns. Specifically it was made for the Montana battleship and used on the Midway carrier. Some of the dual-purpose guns are slow-reloading but theyre also stronger than faster-firing weapons.