What caliber is that, might you ask?
The 6.5mm Creedmoor.
Big Army has been at work on its own intermediate caliber rifle round as officials simultaneously develop the Next Generation Squad Automatic Rifle to replace the existing 5.56mm Squad Automatic Weapon. That project is one piece of a larger effort to also build a next-generation carbine.
But while they are building an entirely new platform, starting somewhat from scratch in an effort that is expected to see a rifle that’s fielded in 2021, special operations snipers will see barrel changes and modifications to their guns fielded next year, said the command’s ammo expert.