As well as in shorter barrel lengths (~8″) the 300BLK is way exceptional for supersonics, at the very least. Extended barrel 300BLK is near pointless IMO, you can find other rounds that outperform it handily in the identical platform, with identical size barrels. You'll need to tweak subsonic handloads dependant https://300blackoutreloading84173.review-blogger.com/59219192/the-fact-about-300-blackout-cases-that-no-one-is-suggesting