And in shorter barrel lengths (~8″) the 300BLK is way superior for supersonics, at least. Extensive barrel 300BLK is around pointless IMO, you could find other rounds that outperform it handily in the same System, with exact same size barrels. Felt recoil will vary from shooter to shooter and rifle https://300-blackout-reloading63062.dsiblogger.com/71885947/what-does-300-aac-brass-mean