Yay, good for you! This thread finally turns into something we can all learn from and then........Never got the 300 BLK ( or 300 whisper for those of us old enough to remember when it was not popular). Ballistics seem on part with a wrist rocket pushing a 25 caliber ball bearing.
Tell you what, catch one of those wrist rocket rounds. I'll spot you you 150 yards and a good catchers mitt













