Gunfire support - Viet Nam 66-67       Photo from Dave Alexander

PERRY Firing Five Inch Guns

Photos below from Frank Midkiff

The Two photos above are of Mount 52.  The ASROC Gunnersmates put these Damage Control plugs in the muzzles and attached the ropes as a joke on a Gunnersmate named Grubb.  The Gunnersmates found out that they could fire primers and that created enough force to pop the DC plugs out. 

While refueling from a carrier the Bridge announced over the topside speakers "Surface Action Port" then the Gunnersmates swung the Mount around and fired the primers and the DC plugs popped out and swung from the ropes.