The 1-48 twist is the most misunderstood twist you find in muzzleloaders. On one hand you are both right. Yes there are better shooting roundball rifles then a T/C with 1-48 twist. No one can or should argue that. But I have numerous 1-48 twist T/C traditional rifles. All of them are good roundball shooters. Now that don't mean I want to compete with them at the range. And maybe I don't want to shoot 200 yards with it. But for the average hunter, who if you ask most of his shots are 80 yards or less... that 1-48 twist will put meat on the table almost every time.
Now understand, the rifle a .54 caliber New Englander is scoped. But the way it shoots roundball at 50 yards.. I dare anything to come in front of me with it.
When people speak of muzzleloaders now, they speak of rifles able to shoot 200 yards. When I started with muzzleloaders, we were tickled to shoot 100 yards with roundball. We hunted with roundball, but we hunted close quarters, and picked our shots.
With open sights I can normally shoot a 4 inch group with a 1-48 twist at 100 yards. Sometimes I get a flier and it makes a liar out of me. 3 inches is a good day for open sights. And actually when I had a T/C Peep sight on my Renegade, I could on occasion shoot under three inches at 100 yards, depending on sunlight and shadows. But the main group is usually in there, where a kill zone would be. And that is plenty good for hunting.