And in shorter barrel lengths (~8″) the 300BLK is way excellent for supersonics, at least. Lengthy barrel 300BLK is in close proximity to pointless IMO, you will discover other rounds that outperform it handily in exactly the same platform, with exact same duration barrels. The aac-sd with 110gr Sierra varmint https://joycec715wgp0.fliplife-wiki.com/user