Seems like as you go shorter, your pulling that bullet in. Might just come down to a little powder charge tweaking to get it better, if needed. That rifle seems to be doing very well.
7828 and the 95 BT was an excellent load in my son's rifle. Seems like it is really doing well in yours as well. Any idea on the FPS?
Groups are looking better but your load is still pretty light? Just a thought but you may be able to shrink groups some more with a little more powder. IMR 7828SSC is pretty slow.