"Rupertus" put into the Long Beach Naval Shipyard for overhaul on 6 October.Departing San Diego for the western Pacific again on 16 May 1953, "Rupertus" screened the cruiser in TF 77, participated in shore bombardment missions off Korea, conducted hunter-killer exercises, trained Chinese Nationalist naval students in Formosan waters, and participated in the centennial celebration of Commodore Matthew C. Perry's first visit to Japan, before returning to San Diego.