You'll also learn about asking the right question: "When do I have to shoot?" The concept of "Don't shoot - Training for the draw is just as effective." Force on force notebook: Revisiting the 21 foot rule in regards to carrying concealed. A special section on 10 seconds to fight. Download your Copy of this report. This report is published by The United States Concealed Carry Association, the biggest community of responsibly-armed Americans.