US Army Considers Adopting an Interim Battle Rifle in 7.62NATO: eventually adopt 6.5

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USSOCOM Weapons Portfolio Overview (page 10): http://www.dtic.mil/ndia/2017/armament/Owens.pdf

6.5mm Ammo Development during FY2018. Intermediate Caliber Sniper Rifle and Carbine to begin fielding late-FY2018.

6.5mm Machinegun Development FY2018-2019. Intermediate Caliber Machinegun to begin fielding mid-FY2019.