I am having a harder and harder time getting my old eyes to focus on the sights on my Pedersoli Frontier percussion. Several years ago I changed out the original sights for fiber optic and that helped a lot, although it almost killed me to do that. Now, after a couple days at the range last week, it's becoming pretty obvious I have to do something more. I've just started to look at reproduction scopes on the order of 3x power. Can anyone tell me what the quality manufactures are? I really don't want a modern-looking scope and I don't want to give up on my sidelock. FYI, I use the rifle for target plinking, deer hunting, and youth day at the gun club for kids to shoot.