I have done a lot of shooting with the 50 gr Pyrodex pellets in my TC. muzzle loaders. I can see no need to ever load more than two of those pellets. I have taken and seen taken many deer with two pellets and several combinations of bullets. They go down like a rock. I fire three pellets ONCE behind a 300 gr Hornady XTP. That was more than enough of that expierence.
I agree! 90 grains of 777 behind a 295 grain powerbelt bullet and a 209 primer gives me 2 inch groups at 100 yards and enough downrange energy to take down even the largest deer. Larger loads and lighter bullets may go further, but when I can use the same load to put 9 in 10 shots inside a pie plate at 200 yards, what else do you need? Who wants to be kicked harder than that.
Plus, I don' t think that most muzzleloading barrels have the right twise for the velocities that these loads generate.
Chubber