6 o'clock hold with the blob sitting on top of your sight. Adjust elevation until you are hitting the center. A Jewell trigger with the lightest spring you are comfortable with is also a big help. Good front and rear rest like Caldwell Rock BR front rest and Protektor Model rear bag with tall ears.This is a serious question. I'm talking about iron sights, no optics. Not extreme long range, say 100 yards. The rifle almost doesn't matter. By futzing around with glasses (diopter lenses on my shooting glasses) I can see the front sight OK, but when I do, an 8" target is just a fuzzy gray blob with undefined edges, almost entirely obscured by the front sight. How the heck do you put the sight in the same place twice?