Nitro Express came to be applied to many of these rimless cartridges also. 1907 British ban In the late 1890s, the British Empire was facing a series of internal insurrections in India and the Sudan, and the .450 calibre .577/450 Martini–Henry rifle was the most widely distributed firearm in the hands of the anti-British forces. In 1907 the British Army banned all .450 calibre (as well as .303 and .577, two other military calibres) sporting rifles and ammunition from importation into India and East Africa, the two major destinations for .450 NE rifles and ammunition. Whilst the .450 cartridges could not be loaded into a Martini–Henry rifle, it was feared the bullets could be pulled and used to reload expended .577/.450 cartridges. What resulted was a rush by British rifle and ammunition makers to develop a substitute, Holland & Holland created the .500/465 Nitro Express, Joseph Lang the .470 Nitro Express, an unidentified firm the .475 Nitro Express, Eley Brothers the .475 No 2 Nitro Express and Westley Richards the .476 Nitro Express, with the .470 NE becoming the most popular. List of Nitro Express cartridges .240 Belted Nitro Express .240 Flanged Nitro Express .242 Rimless Nitro Express .26 Rimless Nitro Express .280 Flanged Nitro Express .280 Jeffery Rimless Nitro Express .303 British Rimmed Nitro Express .318 Rimless Nitro Express .333 Rimless Nitro Express .333 Flanged Nitro Express .350 Rigby Nitro Express .400/350 Nitro Express .360 Nitro Express .360 No 2 Nitro Express .400/360 Nitro Express .369 Nitro Express .375 Belted Rimless Nitro Express .375 Flanged Nitro Express .400/375 Belted Nitro Express .400 Jeffery Nitro Express .450/400 Nitro Express .404 Rimless Nitro Express .450 Nitro Express .450 No 2 Nitro Express .500/450 Nitro Express .500/465 Nitro Express .470 Nitro Express .475 Nitro Express .475 No 2 Nitro Express .476 Nitro Express .500 Nitro Express .500 Jeffery Nitro Express .505 Rimless Nitro Express .577/500 Nitro Express .510 Nitro Express .577 Nitro Express .600/577 Rewa Nitro Express .600 Nitro Express .700/500 Rafiki Nitro Express .700/577 Sahar Nitro Express .700 Nitro Express References Footnotes Bibliography Barnes, Frank C. & Amber, John T., Cartridges of the World, DBI Books, Northfield, 1972, . Grizzaffi, Leo, The 375 Flanged (Magnum) Nitro Express, African Expedition Magazine, retrieved 01 Jan 15. John Rigby & Co, “History”, www.johnrigbyandco.com, retrieved 7 December 2018. Kynoch Ammunition, Big Game Cartridges kynochammunition.co.uk (Archived 2015-01-01), retrieved 31 Dec 14. Haley, Charlie, The .450 Nitro