Ruger No.1 Tropical in .450/400 Nitro Express 3-inch with 24-inch barrel, chambered in a British express cartridge that offers stopping power between .375 H&H and .470 NE. Type: Rifle Action: Single shot Caliber: .450/400 Nitro Express 3-inch Capacity: 1 Year introduced: 2005, USA Weight: 106 oz Overall length: 40.5" Status: Discontinued Intended use: Dangerous game / Safari, Safari, Big Game