Revolvers Codexery

Lefaucheux M1858

First metallic cartridge revolver adopted by any armed service.

Lefaucheux M1858

The Lefaucheux M1858 is a French military revolver developed for the navy, chambered for the 12 mm pinfire cartridge, and based on a design by Casimir Lefaucheux and his son, Eugene. It holds the distinction of being the first revolver using metallic cartridges to be adopted by any armed service. The basic Lefaucheux design was adopted by several European countries, copied and improved over the years before being replaced by centerfire revolvers in the late 19th century.

Quick Facts

Origin
France
Is Ranged
yes
Service
1858–1873
Wars
French intervention in Mexico / Italian Wars of Unification / American Civil War / Paraguayan War / Franco-Prussian War / Second Schleswig War / First Sino-Japanese War
Designer
Casimir and Eugene Lefaucheux
Design Date
1854
Unit Cost
$13.54 13.54 · 1861
Production Date
1858–1865
Spec Label
M1858
Mass
37.5–38.8 oz
Length
11.6 in

Facts from the source article.

Lore & Background

The Lefaucheux M1858 was adopted by the French Navy in 1858 after three years of testing, due to the need for a reliable design capable of withstanding damp conditions at sea for boarding parties. It is a six-shot open framed design, loaded via a hinged gate on the right side of the frame, through which empty cartridges are also ejected via an ejector rod running along the barrel. The cylinder is notched to accommodate the pinfire cartridge's exposed pin, which sets off the primer charge when struck by the hammer. A protective shroud was added to the recoil shield to prevent accidental discharges. The revolver originally used a single-action trigger, but by 1865, double-action versions were also introduced. The French Army, viewing revolvers as personal defense weapons unsuitable for offensive combat, did not issue service revolvers until 1873, though some cavalrymen demanded and received some Lefaucheuxs before being deployed in 1862 during the second French intervention in Mexico. Sweden and Spain accepted the revolver for service in 1863, followed by Norway in 1864. In 1870, the French Navy adopted a double-action, centerfire version of the Lefaucheux, starting a trend with armed forces all over the world adopting centerfire revolvers.

Reader's Guide

The Lefaucheux M1858 is historically significant as the first metallic cartridge revolver officially adopted by any armed service, marking a transition from percussion cap revolvers to self-contained ammunition. Its pinfire cartridge, while prone to accidental discharge if handled carelessly, offered greater resistance to moisture than loose powder used in percussion cap revolvers, and its copper or brass case provided a gas seal and was reloadable. The revolver saw limited but notable use during the American Civil War, being one of the few foreign-manufactured handguns imported by the United States government and the only non-percussion cap revolver used by either side. Over 12,000 were ordered by Federal authorities for cavalry use, mostly serving in the Western Theater, at a cost of about $13.54 each. They were replaced as soon as Colt or Remington cap and ball revolvers became available, and by spring 1864 only 125 remained in service with the Union Army. Some were also purchased by Confederates, including an elaborately engraved example presented to General Stonewall Jackson. The design was widely copied by Belgian and French gunmakers, and its influence extended to later revolvers such as the Gasser M1870 and the Lefaucheux-Francotte models adopted by Denmark and Sweden. The M1858's legacy is that of a pioneering military handgun that paved the way for centerfire revolvers worldwide.

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