Chaszel 22 Caliber Rifled Barrel Blanks / Liner / Material Chambered for 22 Long RifleThese blanks are designed for re-lining existing barrels or custom builds. All the liners we sell have been tested and can withstand the pressure of the round they are chambered for.This is rifled barrel stock material / liner.Outside Diameter of .370″Length Approx. 5 1/2″ Barrel stock is chambered for 22 Long Rifle. Rifle dimensions are .222″/.217″ with 6 lands and .05″ wide.With a 1-12 Twist Rate