Old-school thinking held that if a tourniquet were used on an extremity wound, the injured person would lose that limb. That has been shown to be incorrect, and tourniquets are now in the first-aid kits of medics on battlefields and streets worldwide.
Rob Pincus reviews the key components to a efficient reload from bolt-lock with an AR type defensive rifle. Keeping the rifle in the ready position means that it will be easier to get the gun back into a shooting position, if necessary, when your reload is complete.
Rob Pincus discusses zeroing your home defense long gun optic and why the normal rules of The Plausibility Principle are trumped by the efficiency of zeroing your rifle for much further distances than you would most likely be using it.