GETTING MY FRT-15L3 TO WORK

Bore Buddy Gen 3 Adjustable 22lr Bolt Excess weight (for sixteen" barrels/supersonic ammo use all tungsten weights, for lessen velocity subsonic ammo and/or shorter barrel lengths stainless weights will possible be important):This is the brand-new setup so wanting to know if it just requirements some split-in? Every other Strategies? I absolutely a