I have a Savage .308 barrel that came on my 10fp. It is 20" and is threaded on the end. It is a small shank. It has had 267 documented rounds fired through it and I shot a 3" group at 900 yards with it. I will include the load info that I used. There is a place on the crown where the finish is missing but it came like that new and the crown itself is perfect. Sorry the pic sucks but you get the idea on the crown. I will take $200 plus shipping.