Bolt-action rifle in .505 Gibbs — one of the most powerful sporting cartridges ever produced for magazine rifles. The .505 Gibbs fires a 525-grain bullet at 2,300 fps for ~6,150 ft-lbs. Developed for the largest and most dangerous African game. Rigby built and still builds rifles for this proprietary cartridge on their London-regulated actions. Type: Rifle Action: Bolt-Action Caliber: .505 Gibbs Capacity: 3 Year introduced: 1911, United Kingdom Weight: 112 oz Overall length: 44" Status: Active Intended use: safari, collection