300 Blackout - Loading for my SBR
This video details the process of reloading 300 Blackout ammunition for a Short Barreled Rifle (SBR). The instructor demonstrates brass preparation, powder charging with specific loads for both subsonic (Accurate No. 9 with 190gr Sub-X) and supersonic (Winchester 296 with 110gr V-Max) rounds, and bullet seating to precise overall lengths. It also covers initial range testing, chronographing velocities, and adjusting the SBR's gas system for reliable cycling, particularly with subsonic ammunition.












