The way to get the most out of your barrel is to find the handload it prefers, or at least the commercial ammo it likes the best for starters. But all the 21" carbine barrels I've owned over the years shot quite well with no foul because of the contour. They will shoot better than most trigger jockey's can off hand. Makes for a light and tight package as a truck gun or the swing in thick brush.
Hanger bars tend to take forend pressure off the barrel by removing/reducing contact of the barrel and forend in the forends barrel channel. Although not in the true sense of the word maybe, they sort of "float" the forend while still providing a very secure/stable forward rest for the carbine. I personally used them on all of my barrels, handgun and carbine, whether they were TC factory or custom, and with all of my furniture whether factory or custom. So I had many dozens of them, and kept a supply on hand for new purchases. Custom hanger bars are available from at least Bullberry, MGM and Stratton Custom, all in SW Utah for something like $12-$24 with screws. They also are included with commercial forends from Pachy, but don't reduce the contact with their bars as much, so I used custom hanger bars with all of my Pachy's. I don't remember if bars are supplied by Choate for their TC forends. Some folks effect similar results by just using spacers (and maybe longer screws) between the barrel standoffs and the forend channel, but I prefer the hanger bars as they are more stable IMO.
HTH
Found a picture of a folding Choate buttstock and a Pachy forend (with a Bullberry hanger bar) mounted on one of my Contenders. Barrel is a pencil thin 18" 6X47 from Brown Precision.
