When revolvers were widely used in law enforcement, firearms instructors taught sworn personnel to use a technique called "ball and dummy" to deliver accurate shot placement without flinching or reacting negatively to the force of recoil and muzzle blast. The ball-and-dummy technique requires that you load several but not all of the cylinders of your revolver before you close and lock the cylinder. When shooters anticipate recoil and flinch, their hit potential suffers. The point of this exercise is to be surprised when your revolver discharges.
Training with the ball-and-dummy technique helps you to develop the proper trigger control when shooting a revolver. When you train, it's important to use snappier .38 Special +P and .357 Magnum service ammunition.
The same concept applies to semi-autos. Every time you pull the trigger, focus on your trigger control, on your breathing, your sight alignment and even on the speed in which you cycle the trigger. It's better to be a tad slow and hit what you are aiming at, rather than be the fastest shot in town and miss the target. Many LEOs will blast away when there's plenty of time left in each stage of fire during qualification. Firing too quickly can create a bad habit and foster a conditioned response that you may take with you into the field when you're forced to discharge a firearm during an authorized use of deadly force situation.
A "ready up" drill can be one of the best exercises to help you improve your proficiency with firearms. It works with handguns, patrol rifles, sub-machine guns, select fire tactical rifles and shotguns. To conduct a ready up drill, first load your pistol. Keep it holstered while you face the same target you use when you qualify.
For the drill itself, draw your pistol and fire one round as soon as your front sight covers the scoring area of the target. You can repeat a ready up drill until your firearm is empty at which time you should execute a combat reload and return to firing one shot at a time.