"Lynde McCormick" continued operating out of San Diego until 17 August, at which time she departed for another WestPac deployment. In October 1967 while shelling suspected North Vietnamese gun emplacements just north of the DMZ in company with the USS Newport News, Lynde McCormick was taken under fire by North Vietnamese artillary. She and the Newport News departed the area while shells splashed around them. Film footage of the Lynde McCormick was taken showing this event and was featured on Walter Cronkite's Evening News. In January 1968, Lynde McCormick was ordered to the coast off of Hue to provide gunfire support during the Tet offensive. She remained on station firing in support of American forces there for about two weeks until her barrels were completely spent. In March 1968 she was ordered to the Sea of Japan as part of the USS Kearsarge battle group while a plan was considered about trying to retrieve the USS Peublo, AGER-2, that was taken by the North Korean forces in international waters. April found the Lynde McCormick headed back to San Diego completing her 67/68 deployment. In June 1982, "Lynde McCormick" fired .50 caliber rounds over Vietnamese boats after the boats had fired on during an incident reminiscent of the Gulf of Tonkin incident. On 20 July 1983 the "New York Times" reported that "Lynde McCormick", along with seven other vessels in the Carrier Ranger Battle Group, left San Diego on Friday, July 15, 1983 and were headed for the western Pacific when they were rerouted and ordered to steam for Central America to conduct training and flight operations in areas off the coasts of Nicaragua, El Salvador and Honduras as part of major military exercises planned for that summer. The battle group was composed of the carrier "Ranger", battleship "New Jersey" (which joined the group in late August), cruiser "Horne", the guided missile destroyer "Lynde McCormick", the destroyers "Fletcher" and "Fife", the frigate "Marvin Shields", the oiler "Wichita" and the support ship "Camden". In April 1988, "Lynde McCormick" was one of many ships of the U.S. fifth fleet engaged in operations against the Iranian Navy. This included anti – mine operations, stopping small – boat attacks against Persian Gulf shipping & countering tactical operations by Iranian warships near the Strait of Hormuz. These operations were successfully concluded. The ship was decommissioned 1 October 1991 and was sunk as a target ship on 14 February 2001.