As well as in shorter barrel lengths (~eight″) the 300BLK is way superior for supersonics, at the very least. Extended barrel 300BLK is near pointless IMO, you will find other rounds that outperform it handily in the identical System, with same length barrels. 1 last Take note, suppress shooting is https://brass300blackout96396.amoblog.com/what-does-300-aac-brass-mean-60587193