If one powder and projectile principally for subsonic masses seems to operate for .300 Blackout that could be good. If it turned out to that CFE 223 could fill that purpose that may be the best of all worlds. Felt recoil will differ from shooter to shooter and rifle to https://300-blackout-projectiles53075.bloguetechno.com/how-much-you-need-to-expect-you-ll-pay-for-a-good-300-blackout-reloading-73487128