The Westley Richards Droplock Double Rifle in 600 Nitro Express is the most extreme combination of mechanism and caliber in the dangerous-game double-rifle tradition. Fewer than a handful of pre-war 600 NE Droplocks are documented; current production examples are equally rare. Firing a 900-grain bullet at approximately 1950 fps, these guns require experienced shooters and generate recoil that exceeds any other sporting firearm. Type: Rifle Action: Double / SxS Caliber: 600 Nitro Express Capacity: 2 Year introduced: 1903, United Kingdom Weight: 290 oz Overall length: 46" Status: Active Intended use: Dangerous Game / Collector