Alongside me was a fellow who shoots mostly in competition and gets better scores at 600 yards with iron sights than I can with a scope. He is as careful, thorough, and meticulous a rifleman as I know of, and spends as much time at the range as any of the coots, geezers, and retirees who inhabit the place. But each of us was there only 15 minutes or so. The .308 Scout took maybe 5 minutes to re-sight. The 5.56 Scout, despite being taken apart, the new rings, etc., went back to ¼-minute of angle of where it had been before, so, to justify my trip to the range, I put on one click right windage and called it quits.