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The .32 S&W cartridge was introduced in 1878 for the Smith & Wesson Model 1 1/2 revolver. It was originally designed as a black powder cartridge. The .32 S&W was offered to the public as a light, defense cartridge, for "card table" distances. ==Design== Originally designed by the Union Metallic Cartridge Co. (UMC) as a black powder cartridge using 9 grains of blackpowder, the round has been loaded with smokeless powder since 1940. It is low powered and perfect for use in small frame concealable revolvers and derringers. The round remained popular in the United States and Europe long after the firearms for which it was chambered were no longer produced.〔 At one time it was considered to be the bare minimum for a self-defense round, but was judged unsuitable for police work.〔 For defensive uses, the .32 S&W is grouped with other turn of the century cartridges designed for use in "belly guns", or guns meant for use in point blank defensive situations such as in a carriage, or alley way. These cartridges include the .25 ACP, and the .22 Short, Long, and Long Rifle. For comparison, the minuscule .32 S&W projectile, is over 40% larger in diameter, and over twice as heavy as the 40gr lead round nose used in the .22 long rifle of its day (Known as standard velocity today). The .32 S&W's velocity of approximately 700fps was very close to the .22 long rifle's performance from a sub-3in barrel, but with this larger diameter, and better sectional density. Although the .32 S&W's round nose bullet was less than optimal for defense, it did offer significant improvement over these other common handgun calibers of the day. This performance made the .32 S&W, sometimes referred to as .32 Short, very popular as a gentleman's "vest gun". 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「.32 S&W」の詳細全文を読む スポンサード リンク
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