Snap Cap Drill
Here I show a drill made popular by other shooters that I'm just passing along. Snap caps are fake or dummy ammunition that you can dry fire with without hurting your firing pin, striker, or firearm. In this drill you mix them randomly in with live ammunition at the range. As you shoot you will notice yourself flinching on the snap caps. Realizing how much you flinch and pulling the trigger with no kick when you expect kick helps train flinching out of your muscle memory. This translates to better and more consistent shot placement because not only are you not flinching, you are also keeping your eyes open.