i've scoped every FA gun i have for accuracy testing and i have found factory loads that will all push or break the 1 moa barrier at 100 yards with factory ammo for 5 shots. all 454's as well, i'll bet my 475 coming in several months will do the same. i've never had another brand of gun break the 1 moa barrier at 100 yards yet, not saying they can't, not saying they're not out there and my son's FA 454 and 500 jrh have had groups at about 1.25" at 100 but just saying what my results have been. most accurate revolver i've ever seen was a FA 41 mag that would break 1/2" moa with the right load. all scoped equally with the same scope of course.