I took a look in my Lyman Black Powder book for the energy of your load and the closest it has is 58 cal, 276 gr RB, 32" barrel w/ 1:48 twist, 110 gr 2f goex, FPE @ 100 yds 632. You put that in the boiler room you'll be haveing Tenderloins for supper.
By the looks of that plate, I would say you've got it dialed in.
HA