I want to be able to shoot some stout hunting loads out of mine and didn't want to split the stock. Going to shoot the No Excuses 485 grain in my 54 cal.
I have even decided to get a second custom barrel for it. I am getting a renegade barrel cut to 21" and bored out and relined to 54 Cal with a 1"38 twist. Why, you might ask? Well, as I like to say, I do what I want because in my defense, I have been left unsupervised!
I was lucky on mine as some trigger work had been done and it sits at slightly less than 4 lbs and is nice and crisp and repeatable. I have Williams ghost ring firesights installed on the first barrel and on the new barrel I will the same firesight rear sight mounted at 4" from of the breech to give me a slightly longer sight radius.
I have been shooting the CVA Deerslayer 385 grain with 100 grains of Triple 7 and a 58 cal over powder wad out of it and it gives me "ok" 2" groups at 50 yards. Groups don't vary much between 85 grains and 100 grains. I think part of it is the short sight radius.
I be thinkin that the 485 grain longer No Excuses bullet with 1:38 twist and a more aggressive (deeper) rifling with a longer sight radius will make for a more accurate gun.
Of course, it may not be the first time that I am full of it too!
Read this thread also:
https://www.muzzleloadingforum.com/threads/t-c-white-mountain-carbine-re-bore.139459/