I hunted traditional last year. I used a .54 TC Renegade with a GM barrel. Silmilar gun the The Hawken.
My load was .530 RB .018 pillow ticking patch lubed with mink oil, and 80gr of 2F Swiss black powder.
I shot a cow elk at 70yds, and she didn't go 50yds. The load would have knocked a deer on it's butt.
A very satisfying hunt.