As well as in shorter barrel lengths (~8″) the 300BLK is much superior for supersonics, at least. Prolonged barrel 300BLK is near pointless IMO, you could find other rounds that outperform it handily in the same platform, with exact same duration barrels. We also use third-social gathering cookies that assistance https://300-blackout-reloading97306.blogprodesign.com/59734320/not-known-details-about-300-blackout-bullets-for-reloading