Redman Centerfire Barrel Liner 25-20 Winchester 25" 1-14 Twist

High-grade, button-rifled, chrome moly liners, with a super- smooth inside finish, restore accuracy to older guns with worn or shot-out barrels. To install: drill out existing rifling, soft (Hi- Force 44(TM)) solder or ACRAGLASA(R)new liner in place, then cut new chamber. NOTE: Use 7/16 " drill for .25-20 liners. WARNING: These Redman/Brownell gun barrel liners are made for specific cartridges. Only use with specified cartridges listed in item description below. To chamber these gun barrel liners in other calibers is dangerous and can cause serious bodily injury. Mfg: Redmans SPECS: CM steel. .25-20; .257" groove diameter. .435" (11mm) O.D., 1-14 twist, 25" (63.5cm) long.