Training someone to shoot a defensive handgun is mostly a standardized process. Firearm safety is followed by firearm function, which is then followed by an introduction to the basics of marksmanship. Past that, focus falls on handgun manipulation, presentation and various methods of target engagement.
As Sheriff Jim Wilson points out, personal defense is really about establishing a series of good habits that you regularly employ.
In the midst of the ammo shortage, there is still a way to maximize your training.
Having trouble finding ammunition or getting to the range? Here is a great way to maintain your skills without using precious ammo.