The Proof Research Switch in .300 Winchester Magnum is the long-range and hunting configuration in the switchbarrel system. When combined with the .308 and 6.5 CM barrels, a Switch owner effectively has three rifles for the cost of two barrels. The .300 WM configuration uses a longer magazine and feeds from a separate box but shares the same action. Type: Rifle Action: Bolt-Action Caliber: .300 Winchester Magnum Capacity: 4 Year introduced: 2018, USA Weight: 121.6 oz Overall length: 46" Status: Active Intended use: Precision Shooting, Hunting