Keywords: Million pound round fired by USS Edson (DD-946) at Vietnam in 1968.jpg U S Navy sailors showing the million-pound-round 453 592 kg fired by the destroyer USS Edson DD-946 at Vietnam in 1968 Edson fired 23 008 rounds during her deployment U S Navy photo http //navysite de/cruisebooks/dd946-68/063 htm from the http //navysite de/cruisebooks/dd946-68/index_003 htm USS Edson DD-946 1968 cruise book available at http //navysite de/cruisebooks/index html Navysite de 1968 USN PD-USGov-Military-Navy USS Edson DD-946 Vietnam War in 1968 5 /54 caliber Mark 42 gun |