looking to tap the information source again. i was wondering if any of you guys have any experience with this gun, why i am asking is my dad just got one and it has a williams reciever sight and a lyman target friont sight. he is maxed out on elevation on the rear sight and still shooting 6" low at 50 yards. it looks like he may have to change the front sight to a blade. its a 45-70 and i realixe this isnt a black powder gun in the pure sense but you can load it with black powder if you choose so i was hoping someone around here may have had one and had some remedy ideas. thanks for the help....