And in shorter barrel lengths (~8″) the 300BLK is far remarkable for supersonics, at least. Long barrel 300BLK is close to pointless IMO, you will discover other rounds that outperform it handily in the exact same System, with exact size barrels. The aac-sd with 110gr Sierra varmint bullets will shoot https://moseleyy592qbl9.wikitidings.com/user