The .400 Legend, also called 400 LGND (10x42mmRB), is a

SAAMI The Sporting Arms and Ammunition Manufacturers' Institute (SAAMI, pronounced "Sammy") is an association of American manufacturers of firearms, ammunition, and components. SAAMI is an accredited standards developer that publishes several A ...

-standardized straight-walled intermediate

rifle cartridge A rifle cartridge is a firearm cartridge (firearms), cartridge primarily designed and intended for use in a rifle/carbine, or machine gun. Types Full-powered A full-powered cartridge is a rifle cartridge used interchangeably between servic ...

developed by

Winchester Repeating Arms The Winchester Repeating Arms Company was a prominent American manufacturer of repeating firearms and ammunition. The firm was established in 1866 by Oliver Winchester and was located in New Haven, Connecticut. The firm went into receivership ...

. The cartridge was designed for use in American

states State most commonly refers to: * State (polity), a centralized political organization that regulates law and society within a territory **Sovereign state, a sovereign polity in international law, commonly referred to as a country **Nation state, a ...

that have specific regulations for

deer hunting Deer hunting is hunting deer for meat and sport, and, formerly, for producing Buckskin (leather), buckskin hides, an activity which dates back tens of thousands of years. Venison, the name for deer meat, is a nutritious and natural food sourc ...

with straight-walled

centerfire Two rounds of .357 Magnum, a centerfire cartridge; notice the circular primer in the center A center-fire (or centerfire) is a type of metallic cartridge used in firearms, where the primer is located at the center of the base of its casing (i. ...

cartridges. It is designed for deer hunting out to a maximum effective range of . 223 350 400 rounds

Overview

The .400 Legend is suitable for use in AR-15 type semiautomatic rifles.

History

On April 14, 2023, Winchester Ammunition announced the .400 Legend. The

Sporting Arms and Ammunition Manufacturers' Institute The Sporting Arms and Ammunition Manufacturers' Institute (SAAMI, pronounced "Sammy") is an association of American manufacturers of firearms, ammunition, and components. SAAMI is an accredited standards developer that publishes several Am ...

(SAAMI), the U.S. firearms and ammunition industry's technical standards-setting organization, announced the acceptance of the new cartridge and chamber standard on January 15, 2023. The .400 Legend was preceded by the Winchester Model 1910 .401 Winchester Self-Loading cartridge, and in 2014 by the .400 AR wildcat cartridge designed for the

AR-15–style rifle An AR-15–style rifle is a lightweight semi-automatic rifle based on or similar to the Colt AR-15 design. The Colt model removed the selective fire feature of its predecessor, the original ArmaLite AR-15, which is a scaled-down derivative of t ...

Technical Drawing

Link t
SAAMI
Cartridge and chamber drawings.

Usage

The .400 Legend cartridge is engineered for deer hunters requiring a modern straight-walled cartridge that is more powerful and has greater effective range than the .350 Legend.

State legislation

.400 Legend also addresses a rapidly growing market segment known as "straight-wall-cartridge-compliant" deer-hunting states. A growing number of states that previously restricted deer hunting to limited-range slug guns or muzzleloading firearms are now allowing rifles chambered in straight-walled centerfire cartridges. The .400 Legend was designed for deer hunting in states that have specific regulations requiring straight-walled cartridges for use on deer, such as Ohio, Iowa, Indiana public land, and the Southern

Lower Peninsula The Lower Peninsula of Michigan – also known as Lower Michigan – is the larger, southern and less elevated of the two major landmasses that make up the U.S. state of Michigan; the other being the Upper Peninsula, which is separated by the S ...

region of Michigan. Illinois also allows straight-walled cartridges if used with a pistol or a single-shot rifle. The pistol must be a centerfire revolver or centerfire single-shot handgun of caliber or larger with a minimum barrel length of inches. Single-shot rifles in those specified calibers became legal on January 1, 2023.

Ohio Ohio ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Erie to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the ...

's Deer Hunting Regulations allow the use of a straight-walled rifle cartridge with a minimum caliber of . Indiana regulations actually do not mandate a straight-walled cartridge. When hunting on private land, virtually all centerfire cartridges with a bullet diameter of at least .243 in (6.2 mm) are legal. On public land, state regulations mandate minimum and maximum case lengths of 1.16 inches (29 mm) and 1.8 inches (46 mm) respectively, plus a minimum bullet diameter of .357 in (9.1 mm), but do not mandate a specific case shape. While many straight-walled cartridges meet Indiana requirements, some bottlenecked cartridges also do so, with a notable example being the .458 SOCOM.

References

* Winchester Ammunition
"400 Legend", ''winchester.com''
retrieved 15 April 2023. {{Winchester Cartridges Firearms Rebated rim cartridges Pistol and rifle cartridges