European Sporting Cartridges
338 Norma Magnum (8.59 x 91.44mm)
not the 338 norma "Blaser" Magnum, for a link to that, please  click here:         
Technically this is a European sporting cartridge, but the idea was born in the U.S.A. by American
sport shooter Jimmie Sloan as a long-range sport shooting wildcat cartridge. Mr Sloan built (the then)
wildcat cartridge by shortening and necking down a 416 Rigby cartridge.
Later the design was purchased by the ammunition manufacturer Norma in 2009, most likely to
compete against 338 Lapua as a great sniper cartridge. With a 300 grain projectile traveling at 2,750
Feet per Second,  it will make a great sniper cartridge.  
The United States Special Operations Command  issued a sources sought notice for 5,000 Lightweight
Medium Machine Guns (LWMMG) chambered for .338 Norma Magnum.