The XM2010 was the developmental/trials designation for what became the M2010 ESR. Early production rifles were fielded to Afghanistan under the XM designation before formal type classification. The XM2010 saw combat use and validated the .300 Winchester Magnum extended-range concept before the program was finalized. Identical in most respects to the production M2010. Type: Rifle Action: Bolt-Action Caliber: .300 Winchester Magnum Capacity: 5 Year introduced: 2010, USA Weight: 17 oz Overall length: 46.5" Status: Discontinued Military use: Yes Intended use: sniper, military, precision