Since acquiring a 1903a3 I've come to like peep sights. I had a Winchester 444 lever gun with a 18" barrel that I installed XS ghost ring sights on and zeroed at 50 yards. Was quick to line up on whitetail and pigs. I would try to limit myself to 80-100 yards. Unfortunately that gun got stolen. Recently I picked up a NECG peep sight for a Ruger #1 but haven't had time to try it out.