The Mark V Deluxe in .270 Winchester is among the best-selling Weatherby standard calibers, pairing the high-gloss Monte Carlo walnut with Jack O'Connor's preferred cartridge. Roy Weatherby and O'Connor famously debated .270 Win versus Weatherby proprietary calibers for decades — the Mark V's availability in .270 Win was a commercial acknowledgment that O'Connor's readership was too large to ignore. Type: Rifle Action: Bolt-Action Caliber: .270 Win Capacity: 4 Year introduced: 1958, USA Weight: 8.5 oz Overall length: 45" Status: Active Intended use: Hunting