The Extreme Accuracy Tasked Ordnance (EXACTO) program was initiated to develop a sniper system that makes engaging moving targets more predictable. The fundamental sniper problem is that a missed shot will alert combatants of their presence; therefore, successful single shot engagements are both desirable and important to mission success.
EXACTO, seeks to improve sniper effectiveness and enhance troop safety by allowing greater shooter standoff range and reduction in target engagement timelines. The objective of the EXACTO program was to revolutionize rifle accuracy and range by developing the first ever guided small-caliber bullet.
The EXACTO 50- caliber round and optical sighting technology was developed to greatly extend the day and nighttime range over current state-of-the-art sniper systems. The system combined 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.
The video represents the most recent test data published by DARPA. Impressive!