Teaches:
flinch control and followthrough during live fire.

Requires:
best with shooting partner, can be done alone.

Principle:
If the hammer falls on an empty chamber during slow-fire shooting, your gun shouldn't budge--sights should stay aligned and on target, eye still clearly focused on the front sight. If the gun does dip (or jump), you're anticipating the recoil.

Drill:
Have someone else load a magazine for you, mixing live rounds with snap caps, or for a revolver, leave one or more chambers empty. When you fire the gun, concentrate on keeping the gun steady, sights on target, no matter what happens. When the snap cap comes up you'll be able to check your flinch. If you're doing well, the gun won't budge. If you're not doing well, keep up with the drill until you are. Keep your sights aligned and on target while you release the trigger just enough to re-engage the sear (proper followthrough).

You can do this yourself by loading several magazines and mixing them up, or loading a magazine with your eyes closed, or rotating the cylinder with your eyes shut before closing it.

Variations:
if you have a laser or optical sight, it's even more difficult to keep the dot perfectly on the target when the snap cap comes up, and easier to diagnose the direction your flinch is taking you.