300 Winchester Magnum ammunition for the service's bolt-action M2010 Enhanced Sniper Rifle By Jared Keller Posted on Jan 15, 2020 The Army has selected gunmaker Sig Sauer to produce .300 ...

The Army recently awarded a contract that will result in the fielding of 250 XM2010 Enhanced Sniper Rifle (ESR) weapon systems chambered for .300 Winchester Magnum ammunition. The new chambering ...

300 Winchester Magnum. U.S. Special Operations Command fielded an earlier variant. The Mk22 traces its origins to a SOCOM program aimed at improving sniper rifle options for individual shooters.