The Defense Advanced Research Projects Agency recently conducted the first successful live-fire tests demonstrating in-flight guidance of .50-caliber bullets, program officials maintain. The Extreme Accuracy Tasked Ordnance program, known as EXACTO, is being developed to “revolutionize rifle accuracy and range by developing the first ever guided small-caliber bullet,” DARPA officials maintain. “The EXACTO 50-caliber round and optical sighting technology expects to greatly extend the day and nighttime range over current state-of-the-art sniper systems.” The system combines a maneuverable bullet and a real-time guidance system to track and deliver the projectile to the target, allowing the bullet to change path during flight to compensate for any unexpected factors that may drive it off course, officials say. This video shows EXACTO rounds maneuvering in flight to hit targets that are offset from where the sniper rifle is aimed. Read more: DARPA’s New Smart Sniper Bullet | Kit Up!