I served on the Simpson when we sunk the Joshan. It was April 18th. We had a SEAL detachment onboard and the blew up an Iranian oil platform. After the missile hit we were order to sink it and we fired ten rounds from our 76mm gun.
navet97 that was not a SEAL detachment it was a Navy EOD detachment out of Charleston SC EODMU 6. I was the OIC.
That was the last time a US ship sunk an enemy vessel.
With the retirement of the Simpson the only active-roster ship that has sunk an enemy vessel is the Constitution.