6.8SPC Powders
H4198, H322, X-Terminator, RE10X, AA1680 all work great in the 6.8. I've used IMR and H4198, H322 for 90-110 grain.
Some work better with the 90 grain loads, some better in the 115 grain SMK's and up. Too many variables to list but one of these (or more) should get you...