.357

/ˈθɹiː fɪftiː ˈsɛvən/

noun

.357 Magnum (a class of firearm cartridge).

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Meanings

noun.357 (plural .357s)

plural .357s

  1. .357 Magnum (a class of firearm cartridge).
  2. A firearm chambered for .357 Magnum cartridges.

    Estimates of the total population of on duty handguns in the U.S. showed 70 percent of all officers using .38s and 25 percent using .357s.

    1977 July, S. Bergman, E. Bunten, P. Klaus, LEAA Police Equipment Survey of 1972, Volume V: Handguns and Handgun Ammunition, Washington: U.S. Government Printing Office, page IX

Origin

Shortening of .357 Magnum.

Full word history & related roots →
Cite this entry
APA

.357. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/.357

MLA

“.357.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/.357. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “.357,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/.357.

Source: .357 on Wiktionary, CC BY-SA 4.0.