The submarine was placed in commission, in reserve, on 9 June 1964 in preparation for inactivation and disposal. On 1 July 1964, Barbero was placed out of commission, and her name was struck from the Navy list simultaneously. She was sunk as a target on 24 October 1964. | The submarine was placed in commission, in reserve, on 9 June 1964 in preparation for inactivation and disposal. On 1 July 1964, Barbero was placed out of commission, and her name was struck from the Navy list simultaneously. She was sunk as a target on 24 October 1964. |