🛠️ Invention or technique

Minié ball and rifled musket

Bala Minié y fusil rayado de infantería

Date
1847-1849 · confidence high
Place
Vincennes, France
Credited to
Claude-Étienne Minié (and Henri-Gustave Delvigne)
People
👤 Claude-Étienne Minié1804–1879
Field
Conflict

⚠️ Disputed: the sources disagree.

What it is

A conical lead bullet with a hollow base that expanded on firing and gripped the rifling, allowing a rifled musket to be loaded as fast as a smoothbore one. It quadrupled the effective range of infantry.

Delvigne and Thouvenin had developed earlier expanding bullets; Minié patented his in 1849, and the British government bought the rights from him.

What it led to

  • The carnage of Crimea and the American Civil War (devastating wounds)
  • The end of frontal charges and hand-to-hand combat; trenches
  • The general adoption of the rifled musket (the Enfield, 1853; the Springfield, 1861)
  • Military surgery and mass amputations
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Sources✓ verified 2026-09-25