U.S. Army’s Precision Strike Missile Completes Longest Flight to Date Our Bureau 550 Precision Strike Missile Lockheed Martin said its Precision Strike Missile (PrSM) successfully completed the fourth consecutive flight test with the U.S. Army today in a 400-kilometer demonstration at White Sands Missile Range, New Mexico. The PrSM was fired from a HIMARS launcher and flew with expected precision to the target area where it once again demonstrated a highly accurate and effective warhead event. Test objectives included confirming flight trajectory, range and accuracy from launch to impact, as well as warhead lethality, HIMARS integration and overall missile performance.