I've had groups with my Uberti/Pedersoli Sharps at 500 yards so small people roll their eyes and walk away when I tell them about it. Ironically, it shoots better than my Shiloh. I use a 535 grain Postell over lightly compressed Swiss 1.5 touched off with a Federal 215 primer and a blow tube between shots.
freedom475 - I picked up a .45-120 a couple years ago, and haven't done anything with it yet other than fireform 60 cases. What are you using in yours?
Sometimes the squeaky wheel gets replaced...