Folks;
We have to consider the most likely scenarios in which we might have to use a defensive gun. Although I practice occasionally with my carry guns at distances out to ONE HUNDRED YARDS (thanks, Mr. Ayoob) it's far more likely that I will be confronted by some thug at an ATM, or at a store counter, or when approaching a corner where the jerk has taken cover....
Here, we are talking about FEET, not yards. I practice quite a few drills which I developed for myself. I do believe the most useful and most practical of these is one where I stand close enough to actually PUNCH the target hard with my weak hand while drawing the gun. I then start firing as soon as the muzzle bears on target, from waist height and maybe two feet of distance or even less. I then commence backing up, firing as I go, and the gun ends up in a two-handed hold at eye level by the time I'm ten feet away (or less). I sometimes start this drill with my back to the target, as if someone has approached me at the mentioned ATM, and accosted me. If the target happens to be knocked down by the punch, it then represents a ground-level opponent and is shot accordingly.
What if you're knocked down? I practice firing at close range (5-10 feet) while lying on my back, feet toward the target, and also, lying on my back, HEAD toward the target. Yes, this means shooting with the gun upside down. Also, have you practiced trying to get your gun into action while rolling on the ground, or with it pinned underneath you??? Try it, because it'll open your eyes. It just might be valuable to learn these things on the range, BEFORE you have to do it for real.
What about the carjackers? Try some shooting from your vehicle, and you'll quickly develop an appreciation of how difficult it is to both access your gun, and to shoot accurately at a target just outside the car window. Hint: ambidextrous training is VERY valuable!
I still shoot at longer ranges, out to 25 yards or so, plus the LONG range as mentioned above, but for every round fired over ten yards' distance, I'd bet I fire twenty or more at almost zero range. Non-cop gun carriers are by far most likely to encounter threats at close range, and should practice accordingly.
Regards from BruceB