The gun was parted together from scratch with an 308 bolt face. I already accumulated 223/22-250/and a 243 barrel for 30-40$ each. I can get the 223 barrel chambered to 22-250 and be able to shoot much heavier bullets with the 1/9 twist. Its also the factory light contour like I like and the matching blued finish. So I would have about 150 in the barrel in all vs 300+ for a new one contoured,chambered, and blued like I want it.