Proof Research PXT 243 Win 20" Carbon Fiber Barrel Blank

Carbon fiber is how Proof keeps the weight of these barrels down, and PXT is the rifling that goes inside. Proof Exponential Twist reworks the rifling geometry and twist progression so the bullet is eased into the lands instead of slammed into them, which lowers engraving force and slows throat erosion.

This blank is 20" long in a Sendero contour and bored for 243, aimed at a bolt gun build. It arrives as a blank, so your gunsmith chambers it and fits it to the action you have in mind.