Seeing for many years I only built spec LRs, a decision had to be made on a number of stock dims and where to locate the rear sight.
Using various lengths and weights of swamped bbls, tried the rear sight either to the rear or forward of the hand at the balance point. Decided on the forward location and never rec'd any complaint from buyers on this location and in fact, rec'd some compliments This rear sight location is also perfect for my "old eyes". Because of the different swamped bbls used, there was a slight variation of the rear sight location, but nothing major......Fred