I'm not "a gun nut" David, my interest is purely academic I don't, and never have owned a gun myself, the only times I have used them was for five years in the Royal Marines as a small arms instructor and in combat and I have no desire to ever touch one again.
Hold on, there was a unit in the Royal Marines for soldiers with small arms?
What exactly did you teach them?
Let me ask you something. If the rule you followed brought you to this, of what use was the rule?