I'm going to have to respectfully disagree with focusing on the reticle. Guess it depends on what you want to accomplish. First off, I will say I have never been to sniper school. Never had any interest in shooting humans. I have shot competition all my life and killed more than my share of game, some of it at distances best measured on a map. I still shoot between 30-40k rounds a year in different guns. Focusing on the reticle works perfectly fine as long as both you and the target are stationary. Same with focusing on the front site of a handgun, or the bead of a shotgun. Problems start when the target is moving. Whenever you take your focus off the target and apply it to whatever sight you have the gun will instantly stop. You can easily prove it to yourself. Next time you are at the range get up off your belly and stand up and shoot at steel at 500yds. Leave your scope turned up. Focus on the reticle and you will chase it all over the place. Focus on the target and watch it settle. Then go to the clays range. Try it with a shotgun with rifle sights, or a contender pistol. Focus on the front sight and try and measure the lead. Impossible to hit consistantly, and if you do manage to hit it, it will require excess lead because you are trying to shoot it with a dead gun. Focus on the target and you can consistently hit it. If you learn to focus on the target you will be become not only a better shooter in all situations. You will be faster getting the shot off. Matters with live targets.I shot benchrest in the '70's and when I attended my first LE sniper school, focus was on the reticle instead of the target, accept that there will always be movement and don't press the trigger until the momentary pause when you fully exhale as you begin the press. Your lungs are as empty as possible which reduces tension in the chest/lungs. Air in the lungs amplify the transmission of every heartbeat and twitch to the scope which you will see and try to compensate for. Breathe, relax and allow it to happen. Think of releasing the trigger along with the tension and be surprised when it goes off..