This blued Contender 357 Magnum barrel is in good shape. Has the usual signs of use and a couple of scratches here in there. Please refer to the pictures as they are a large part of the description. The Thompson Center Contender 357 Mag Magnum Octagon Barrel is a high-quality gun part designed specifically for Thompson/Center Arms rifles and muzzleloaders. With a gauge/caliber of. 357 Magnum, this 10 long barrel is blued and features a tapered octoganal design. Ideal for hunting and sporting purposes, this barrel offers durability and precision for your firearm needs.