Let me ask, what exactly were you looking for in this? Three consecutive loads with minimal verticle dispersion? Typically this is done at 200 yards rather than the ranges you are using, as it allows the results to be easier to discern. Also how did you shoot the ladder? Round robin? Let the barrel cool inbetween or not? Give me some more info and maybe we can help ya.
I've heard 400 yards is better than 200 yards. What brought you to use 200 yards? With the scopes I use I can see bullet hole at 400 yards.
