As was said above, find the place your hand will carry the rifle balanced, and go in front or in back. For older eyes, "in front" seems to win. I am not a rifle builder, but have long wondered how folks who install sights on the barrel early in the build process know where to put them? Experience I guess. I had one muzzleloader with the rear sight at the balance point. What an ongoing annoyance. Just thinking out loud. God Bless, Marc