Bartlein manufactures their barrels by using state of the art computerized deep hole reamers, honers and riflers. Utilizing single point cut rifling, it is free from stress, ensures the twist rate is uniform, and the bore dimensions are exact.  Twist rate uniformity is best in the industry and can be carried out to the 4th decimal point e.g.,  11.3642.

All Bartlein barrels are hand finished lapped at the factory to perfect nominal dimensions and a mirror finish. Please click here for a description of Bartlein's Barrel contours.

Please note all Bartlein barrels can be finished to shorter lengths.