Mark V Ultramark in 257 Wby Mag. AAA Fancy walnut, hand-rubbed oil finish, contrasting wood grip cap and forend tip, Pachmayr pad. The Ultramark represents Weatherby's highest production-grade walnut option below the Custom Shop. Type: Rifle Action: Bolt-Action Caliber: 257 Wby Mag Capacity: 3 Year introduced: 1988, USA Weight: 178 oz Overall length: 46.5" Status: Active Intended use: Hunting, Collector