The Farquharson falling-block single-shot action — one of the strongest and most elegant single-shot designs ever produced. WR acquired rights to the Farquharson patent and built high-quality sporting rifles on this action from the 1870s through the early 20th century. Available in the most powerful calibers of the era. The Farquharson is considered by many the finest single-shot action ever designed. Type: Rifle Action: Single-Shot Caliber: .577 Nitro Express Capacity: 1 Year introduced: 1872, United Kingdom Weight: 104 oz Overall length: 43.5" Status: Discontinued Intended use: safari, collection