Lieutenant Colonel Jeff Cooper(May 10, 1920 September 25, 2006) US Marine, small arms expert/consultant, Father of the modern technique of the pistol, Founder of the American Pistol Institute (Later known as Gunsite Academy), proponent of the 1911 pistol and, creator of the four general rules of safety:

All guns are always loaded. Even if they are not, treat them as if they are.

Never let the muzzle cover anything you are not willing to destroy.

Keep your finger off the trigger till your sights are on the target.

Identify your target, and what is behind it.

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