And in shorter barrel lengths (~8″) the 300BLK is way superior for supersonics, at least. Extensive barrel 300BLK is around pointless IMO, you will discover other rounds that outperform it handily in the same System, with same size barrels. The aac-sd with 110gr Sierra varmint bullets will shoot a clover https://francisz837bmw4.like-blogs.com/profile