I have an 1884 Springfield rifle, that I used at this past Muster, and I am very pleased with it. Using standard .45-70-405 Government load, it shoots "dead on" at 200 yds ("on steel", anyway) by aiming center mass, and hits consistently at 100 yds aiming at the base of the B27 steel silhouette. Both ranges shot with the Buffington sight folded down ("battle sight"). During the Main Match, I had only a couple of misses with the rifle, and believe I shot two stages clean on the rifle targets. I ran into trouble on the 300 yd long range. I used my Buffington sight standing up, with the slide set for that range, and didn't get any hits for 9 shots, and those spotting really couldn't tell where I was hitting.
I have only a 100-yrd range available to me locally, and was considering using a large butcher-paper backing for my target, and attempting to shoot at 100 yds (aiming at the base of the B27 target) using sight settings for 300...I should print hits about 24" centered above center mass, or about 34-35" above point of aim, shouldn't I? Once I get in the ball park, I can travel 100 miles or so to a known-distance range to tweak it. This makes my head hurt...