Holland & Holland Royal Hammerless double rifle in .500 Nitro Express with 26-inch barrels. Perhaps the most powerful configuration of the Royal, delivering over 7,000 ft-lbf of combined energy from two barrels. Type: Rifle Action: Double Rifle Caliber: .500 Nitro Express Capacity: 2 Year introduced: 1883, UK Weight: 13 oz Overall length: 43" Status: Active Intended use: Dangerous Game, Safari