Heavy dangerous-game bolt-action in .458 Winchester Magnum — the American-standard stopping cartridge developed by Winchester in 1956 to replace British Nitro Express calibers with a more affordable option. Heym Express action reinforced for the high-pressure .458 cartridge. Type: Rifle Action: Bolt-Action Caliber: .458 Winchester Magnum Capacity: 4 Year introduced: 1990, Germany Weight: 128 oz Overall length: 44" Status: Active Intended use: safari