To empty the magazine of a 9 shot 12 gauge is 'blind' shooting, but in all fairness, this is a military tactic, and if I'm not mistaken, many TBRC members are X-military, including Colyer.
Let me take my buddies (he's a dealer) Browning BAR out Deer hunting, and empty a clip on Bambi.......not good or safe hunting my friend.
We DON'T need X-military folks out in the woods ready to shoot the place up, empty mags & clips......it's a recipe for disaster.