Hrndy Lnl Ammo Concentricity Tool

The Hornady Linear Ammo Concentricity Tool is a precision measurement and correction device designed for serious handloaders seeking match-grade ammunition consistency. This tool identifies and eliminates bullet runout—the lateral wobble that can affect downrange accuracy—by measuring concentricity with dial-indicator precision and allowing systematic adjustment until rounds meet specification.

The concentricity tool features a dial indicator thumbscrew mechanism that provides real-time feedback as you rotate loaded rounds through the measuring chamber. This allows for the detection of runout, which can impact accuracy, especially at longer distances. The sturdy frame bolts securely to a reloading bench, eliminating hand-holding variables and ensuring repeatable measurements shot-to-shot.

This tool serves competitive shooters, precision rifle builders, and dedicated handloaders who understand that ammunition quality directly influences achievable accuracy. By catching and correcting runout before rounds leave the shop, users can minimize one major variable that affects performance. The compact design occupies minimal bench space while providing the rigidity required for consistent dial readings.