And in shorter barrel lengths (~8″) the 300BLK is way outstanding for supersonics, at the very least. Lengthy barrel 300BLK is near pointless IMO, you can find other rounds that outperform it handily in the identical System, with same length barrels. We also use 3rd-occasion cookies that help us review https://300-blackout-brass41740.shotblogs.com/300-aac-brass-an-overview-51794505