As well as in shorter barrel lengths (~8″) the 300BLK is much outstanding for supersonics, a minimum of. Extensive barrel 300BLK is around pointless IMO, you'll find other rounds that outperform it handily in a similar platform, with exact length barrels. Measuring only at 1.72″ in duration, the Gamma by https://johnu056nlh0.ourabilitywiki.com/user