Mike-
Tried a lot of loads thru a lot of 44 mag revolvers. Personally, I like between 6 and 6.5 grains of Red Dot behind a 240 / 250 grain cast bullet. 875 to about 925 fps, depending on barrel length. Burns clean, is accurate in most of my guns, and is an all around good field and target load when you don't need maximum power. (Shown on Alliant Powder home page "44 Rem Mag., 6.5 grn Red Dot, 240 grn LSWC bullet, 905 fps.) Unique and 231 have also proven to work well for me, with 231 being a little cleaner burning.
For full power loads, 296, H-110, and 2400 work well. That Hornady 240 XTP is a great deer bullet, either in a factory load, or loaded to 1250 fps or so using one of the above noted powders.
Hogue rubber grips are cheap to purchase and install, and will make your Super Blackhawk a lot more comfortable to shoot with heavy loads. I usually switch out my pretty wood grips on most of my big bore revolvers when I know I am going to spend some time shooting the heavy stuff. I don't care how tough you are, it is hard to be consistently accurate when that trigger guard his smacking your middle finger...
Larry