I had a CVA single shot 444 for almost a year. Was a great rifle, but I just didn't get a chance to shoot an animal with it.
The best thing about it was the ability to load up a few "shot" loads to carry while out hunting to be able to take the odd grouse.
Changed things up to a 450 BM, just because I found a new ruger #1. Prefer the #1, but it is not a rifle to really compare to the CVA scout. Best thing about the #1 is I can load hot loads in it and push the limits with the falling block set up. Could not figure out a "bird shot" load for it unfortunate as I think the shell is just too short. I might have to give it a go another day with some 3D printed tips to hold the shot out farther.
I read the same thing about the 444 ability to push out past the 45-70 with less recoil. I'm now doing the same with the 450BM, less recoil, and still pushing the copper 290 gr tip @ 2270 fps from the muzzle.
The only other thing I found was a draw back with the 444 is the lack of available bullets to use in the heavier range. Just no one making much of anything anymore. The hornady 265 are impossible to find tips, and only factory ammo available.