I'm keeping my other 308 barrel and selling this one . It will shoot 1/2" Moa with easy or better. It's ex shape and has around 800-900 rds down it. Threaded for Surgeon 591 action. Muzzle is not threaded. Barrel is MTU CONTOUR. Smith that Chambered it can be seen in picture. Mike is his first name and you can google his work. He's well known for great work up north. Any questions etc text or call me at 254-275-7335 Mark for fastest response. Or PM me $535 shipped!