As GC was getting into it, with a shotgun you point, with a rifle you aim. I shoot between 8 and 12,000 rounds a year of trap and related games. Done this for a few decades. I never see my "front bead" on the shotgun before I shoot. Eye is always on the target, whether it's a clay or bird. The barrel is just an extension of your eye. Both eyes open. Only one shooter in all the years I've shot, had a halogram site on and that was because he was in a fire accident and still wanted to shoot. Needed the extra help.