 After fitting out and loading stores, "Shelton" steamed out of port on 21 April, in company with bound for Bermuda on her shakedown cruise.Upon completion, she underwent post-shakedown availability at the Boston Navy Yard from 25 May – 15 June.She departed Boston on 16 June "en route" to San Diego via New York City, Hampton Roads, and Balboa, Panama Canal Zone.