And in shorter barrel lengths (~8″) the 300BLK is much superior for supersonics, at least. Very long barrel 300BLK is close to pointless IMO, you can find other rounds that outperform it handily in the exact same platform, with exact duration barrels. Felt recoil will vary from shooter to shooter https://300-aac-brass20628.smblogsites.com/39034071/300-blackout-cases-secrets