The .350 Legend (9×43 mm), also called 350 LGND, is a SAAMI-standardized straight-walled hunting cartridge developed by Winchester Repeating Arms. The cartridge was designed for use in American states that have specific regulations for deer hunting with straight-walled centerfire cartridges. Winchester claims that the .350 Legend is the fastest production straight-walled hunting cartridge in the world, although some .444 Marlin and .458 Winchester Magnum loads are faster. It is designed for deer hunting out to a maximum effective range of 250 yards (230 m).
Ohio's Deer Hunting Regulations allow the use of a straight-walled rifle cartridge with a minimum caliber of .357 inches (9.1 mm). Consequently, the .350 Legend is a legal hunting rifle cartridge there.