Krieger 17 caliber mach 4 barrel once attached to sako A-1 action. bought the rifle and decided to re-barrel to 223 AI. 11 rounds down tube. virtually new. Krieger gets $425 for unchambered 17 caliber barrel. also included is two boxes of bullets, 200 221 fireball brass, and basically new 3 die set from redding. barrel is 25" long and tapered. what you see is what you get. $400/shipped to CONUS. twist rate is 1-10. 3 shot one hole breaking in @100 yards. no recoil, would make perfect little squirrel rifle.