As well as in shorter barrel lengths (~eight″) the 300BLK is way excellent for supersonics, at the very least. Long barrel 300BLK is close to pointless IMO, you could find other rounds that outperform it handily in the same System, with exact same size barrels. Hell, should you don’t foresee https://300blackoutreloading73692.theblogfairy.com/37877826/300-blackout-cases-fundamentals-explained