I would suggest using the new Triple 7 loose powder - it' s good stuff.
I' m shooting a Knight USAK, which is practically identical to the Wolverine except I use #11caps and I' ve found that the Hornady XTP Mags and new SST sabots in 300gr shoot exceptionally well out of my gun with a 80gr load of 2fg Triple Seven. This past Friday I tried the SSTs for the 1st time and the first 3 shots I fired left a .6" group at 75yds - with all three shots overlapping........hard to beat that kind of accuracy.
You may also want to try the PowerBelt line of bullets. I' ve gotten the best results using the 348gr AeroTip model with 90gr of 777 powder.
Good Luck with the new shootin' iron!
