I have a T/C Hawken .50 with a Green Mountain barrel, rifling pitch 1:28". My favorite deer load is a .350 grs. T/C Maxi-Hunter pre-lubed at the factory over 95 grains of Swiss FFFg and a thin dry felt wad between powder and bullet. I have already killed three deer with it, two Sitka Blacktails in Kodiak and a whitetail here in Alabama all three fell in their tracks. I prefer to shoot deer (both with my ML and with my centerfire rifle) in the forward point of the shoulder blade. The ball breaks the spine and sends bone fragments into the heart/lung area. I never shoot behind the shoulder because many animals will run after this shot placement. I am color blind and can't see red on green. Following a blood trail is very difficult for me, so I like a shot placement that paralyzes and kills immediately. The reason I use FFFg is that I find its ignition more consistent. This gives better accuracy. Swiss BP burns cleaner than many other powders, and avoiding petroleum-based lubricants allows dozens of shots to be fired in a row without having to clean the barrel between shots. I use exclusively T/C black powder solvent No. 13 and T/C Bore Butter as lubricant/rust preventative. I have not used hot, soapy water for the past six years (since I bought the Green Mountain barrel) and my barrel is shiny inside as it was when I bought it--no rust! Sorry about going off-topic a bit.