On 27 August 1965, "Everett F. Larson" fired her guns at an enemy for the first time since World War II, firing over 300 rounds of 5"/38 caliber ammunition into North Vietnam conducting shore bombardment operations. The ship remained on the "gun line" until early September conducting underway replenishments of fuel from and , stores from and , and ammunition from between gun shoots and occasional plane guard duties behind one of the three to four attack carriers operating in the vicinity.