To accommodate this range of bullet selections, Proof Research provides an 18" barrel ... Users looking to utilize Hornady's new 6mm ARC cartridge to its fullest extent can do so with a precision ...

Hornady officially released news of it 6 mm ARC (Advanced Rifle Cartridge ... a 108-grain ELD Match bullet exited 18-inch Proof Research match-grade stainless steel or carbon-fiber barrels ...