Masterpiece Arms BA Chassis in .300 Winchester Magnum with 26-inch barrel, extending the precision chassis competition platform to magnum calibers. Type: Rifle Action: Bolt-Action Caliber: 300 Win Mag Capacity: 10 Year introduced: 2016, USA Weight: 168 oz Overall length: 50.5" Status: Active Intended use: Long-range competition, 1,200+ yard precision