1 Preferred Barrel Blank Tikka Barrel. 243 Caliber. PBB Sendero profile and has a slight marking from barrel vise. Excellent condition. $350/shipped. CONUS Zelle preferred. Specs: PBB-3lbs 6oz, 20" long, 5/8x24 muzzle threads, wrench flats, .800" at muzzle, 1.125" at shoulder, 1:7.5 Twist.