FX Superior Heavy STX Barrel Liner .22 500mm Pellet/Slug size-uk-5-eu-39 letting displaced copper flow into

letting displaced copper flow into them under firing pressure

so it forms a fitting pair with the knife

Fitting follows Warne's usual vertically split ring design

Adjustable waist cord

FX Superior Heavy STX Barrel Liner .22 500mm Pellet/Slug size-uk-5-eu-39 letting displaced copper flow intoThe FX Superior Heavy Smooth Twist X (STX) barrel liner is a replacement rifled liner for FX PCP air rifles, produced using FX's patented process of pressing the rifling into the barrel from the outside. This 500mm liner is chambered in . 22 calibre and carries a 1: 16" twist rate. The "Heavy" designation does not refer to a thicker barrel wall per FX, it denotes a different twist rate specifically optimised for heavier pellets and heavier slugs, as