Official Site – XactSystem™ Precision Guided Firearms | TrackingPoint What is a PGF? The Precision Guided Firearm (PGF) developed by TrackingPoint is the most accurate shooting system in the world. Called the Xact SystemTM, it solves multiple problems that long range shooters face. The Xact System ensures repeatable performance and accuracy even at extended ranges. The PGF also offers applications for smart devices. These apps interact with embedded wifi servers to share real-time or recorded images.