Mark V Lazermark in 378 Wby Mag. Engraved walnut stock on the most powerful commercially available Weatherby magnum short of the 460. Built on the massive 9-lug Mark V action. Type: Rifle Action: Bolt-Action Caliber: 378 Wby Mag Capacity: 2 Year introduced: 1981, USA Weight: 190 oz Overall length: 46.75" Status: Active Intended use: Hunting, Big Game, Dangerous Game