Faxon 6mm ARC 16 Gunner, designed by Faxon’s competition shooting staff. Manufactured 100% in-house from gun-barrel-quality bar-stock, the Faxon 6mm ARC 16 Match Series starts with 416-R in the 5R rifling. The 5R rifling minimizes jacket deformation, increases velocity and ease of cleaning. We chamber our Match Series in 6mm ARC, a hybrid chamber the 5R rifling takes full advantage of with lands opposite grooves and reduced sharp angles that reduce jacket deformation increasing velocity, and easy cleaning.