The .300 Win Mag Model 52 is the most powerful standard offering in the Cooper centerfire lineup, using a magnum-length version of the three-lug action and a 26-inch match-grade stainless barrel. Cooper extends their sub-half-MOA guarantee to this configuration, a meaningful commitment given the increased chamber pressures of the .300 Winchester Magnum. Type: Rifle Action: Bolt-Action Caliber: .300 Win Mag Capacity: 4 Year introduced: 2010, USA Weight: 80 oz Overall length: 46.25" Status: Active Intended use: Hunting, Long Range