I have a T/C Hawken .54 I bought like new several years ago. Went .54 because I like to shoot patched ball and wanted lots of lead in a PRB for deer hunting being that a ‘ball’ is as light as it can get if you don’t count sabot pistol bullets.
Following your post. I’ve purchased a few different lead ball sizes but have yet to shoot this .54 yet!
What experience I have has been with 45 and 50 cal rifles.