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0.40 Smith & Wesson

0.40 Smith & Wesson

Region

South Africa
South Africa
Mexico
Mexico
Indonesia
Indonesia
Israel
Israel
Czech Republic
Czech Republic
Slovakia
Slovakia
Austria
Austria

Category

Ammunition, Missiles and precision weapons
Ammunition, Missiles and precision weapons

The 0.40 S&W is a rebated rim cartridge, the extraction rim being somewhat smaller in diameter than the case. The case is of brass, Boxer primed and straight-tapered. Bullets are generally semi-jacketed hollow point, though a full metal jacketed round has been developed for possible military use. Developed by Winchester and Smith & Wesson in the late 1980s as the response to the 10 mm Auto cartridge. The principal difference is the shorter case. This means that a pistol frame originally designed for 9 mm

Parabellum can be easily modified to 0.40 S&W, whereas modification of a design to take the longer 10 mm Auto round requires a considerable change to the magazine well. The calibre has been adopted by several influential makers and has eclipsed the 10 mm round in popularity. The 0.40 S&W has not yet been adopted by any military force, but has gained wide use by law enforcement and security activities in the USA and its employment continues to spread. Applications include suitably chambered Glock, SIG, Smith & Wesson and other pistols and Heckler and Koch sub-machine guns.
Tech Specs
Round length28.7 mm
Case length21.6 mm
Rim diameter10.77 mm
Bullet diameter10.11 mm
Bullet weight10.6 g
Muzzle velocity302 m/s
Muzzle energy486 J
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