Johann Fanzoj produces what is widely considered the world's most powerful commercially available double rifle — chambered for the .700 Nitro Express. The .700 NE fires a 1,000-grain bullet at 1,900 fps for approximately 8,025 ft-lbs of muzzle energy. Only a handful of gunmakers worldwide will attempt this caliber; Fanzoj is the most prominent. Each rifle requires years of work and costs well into six figures. Type: Rifle Action: Break-Action Caliber: .700 Nitro Express Capacity: 2 Year introduced: 1988, Austria Weight: 104 oz Overall length: 43.5" Status: Active Intended use: collection, safari