"Antares" finally returned to Norfolk early in June 1963 and, following repairs alongside the repair ship , operated along the United States East Coast for the remainder of 1963. Following a resupply mission to the fleet ballistic missile base at Holy Loch in January 1964 and participation in the annual "Springboard" exercise near Puerto Rico, "Antares" returned to Norfolk later in the spring of 1964 to prepare for inactivation. "Antares" reported to the Norfolk Group, Atlantic Reserve Fleet, on 15 September 1964 and was decommissioned there on 18 December 1964. She was laid up in the National Defense Reserve Fleet's James River Reserve Fleet on 30 March 1965. Her name was struck from the Navy list on 1 September 1965, and she was simultaneously transferred to the Maritime Administration. "Antares" remained inactive in the James River Reserve Fleet until she was sold for scrapping on 5 April 1974 to the Union Minerals and Alloys Corporation, to which she was delivered on 31 May 1974. Crew of Naval Armed Guard on the SS "Nampa Victory"' earned "Battle Stars" in World War II for war action during the assault occupation of Okinawa from 24 June 1945 to 30 June 1945.