Awhile back I got fed up with looking for the magical,mystical,AA2200 for my 6.8. Had a bunch of H4198 so started working up loads for some 85gr Barnes TSX bullets. The hotter I got them the more accurate they became. Now well under an inch at 100 and over chrono, a little over 3100fps, and extreme spread is only 17fps. This,using my Bison 18" SPCII with 1:11 4 groove.
Your above grouping is GREAT. Definitely MOP. ---pruhdlr