I run with guys who spray bullets. They like to push me into getting the "Lantac" muzzle brake so the rifle stays on target while spraying. I don't shoot like that and never did so having an effective muzzle brake is a waste of money. One shot.......one dead thing. If a target isn't available, then why shoot?
That's how I do it.
Flash
Not sure what type of situation you are referring to here. No one has mentioned spraying bullets or shooting without having a target.
As far as "on shot, one dead", I agree when it comes to many things, but that is a fairly dangerous attitude when it comes to self defense.
Maybe you could expand on your comment for better context and help relate it to the type of situation we are discussing.