Martini-Henry Mk I
Royal Small Arms Factory · Rifle · Discontinued · 1871
Also known as: Martini-Henry Mark I, Rifle, Breech-loading, .450-inch, Martini-Henry Mk I, P-1871 Martini-Henry, Martini-Henry Short Lever, MH Mk I
Overview
The Martini-Henry Mk I is a single-shot, breech-loading British service rifle adopted in June 1871 as the first production pattern of the Martini-Henry family that armed the British Empire at the height of the Victorian era. It married the self-cocking falling-block action of Swiss-Austrian engineer Friedrich von Martini (itself derived from the American Peabody dropping-block) with the seven-groove polygonal rifling patented by Scottish gunmaker Alexander Henry. Pulling the finger-lever beneath the receiver dropped the breechblock, ejected the spent case, and cocked the internal striker, allowing a fresh .577/450 cartridge to be loaded by hand. The massive bottlenecked black-powder cartridge drove a 480-grain (31.1 g) paper-patched lead bullet at roughly 411 m/s for devastating stopping power. The Mk I is distinguished from later marks by its short cocking lever, brass hinge (axis) pin rather than steel, large cocking indicator, button-head ramrod, chequered butt plate, wide V-notch backsight, and a butt-mounted rear sling swivel. Soldiers complained the short lever required excessive force to operate, prompting the long-lever Mk II of 1877; most surviving Mk I rifles were subsequently converted to Mk I/II standard, making unaltered first-pattern examples extremely rare today.
Specifications
| Weight (empty) | 3830 g (135.1 oz) |
| Overall Length | 1245 mm (49.02") |
| Barrel Length | 840 mm (33.07") |
| Action Type | Falling Block |
| Firing Mechanism | Striker Fired |
| Trigger Type | Single Stage |
| Magazine Capacity | 1 rounds |
| Magazine Type | Internal |
| Muzzle Velocity | 411 m/s (1348 fps) |
| Muzzle Energy | 2626 J (1937 ft·lbf) |
| Effective Range | 370 m (405 yd) |
| Maximum Range | 1737 m (1900 yd) |
| Rate of Fire | 12 rpm |
| Barrel Rifling | Right Hand |
| Rifling Twist | 559 mm (22.01") |
| Number of Grooves | 7 |
| Frame Material | Steel |
| Barrel Material | Steel |
| Stock Material | Wood |
| Finish | Blued |
Calibers
- .577/450 Martini-Henry · primary — also known as .577/450 Boxer-Henry, .577-450, 11.43x60R
Features
- Firing modes: Manual
- Feed systems: Single Shot Breech Loaded
- Safety mechanisms: Cocking Indicator, Safety Catch
- Features: Falling Block Action, Lever Operated Breech, Short Cocking Lever, Henry Polygonal Rifling, Internal Striker, Single Shot Breech Loader, Brass Hinge Pin, Button Head Ramrod, Socket Bayonet Lug, Sliding Rear Ramp Sight, Fixed Front Post Sight, Cocking Indicator
Base model
Service history
Operators
- British Armed Forces · adopted 1871 · as Rifle, Breech-loading, .450-inch, Martini-Henry Mk I
- British Indian Army · adopted 1871 · as Martini-Henry Rifle
- Australian Colonial Forces · adopted 1878 · as Martini-Henry Rifle
Conflicts
- Anglo-Zulu War (1879)
- Second Anglo-Afghan War (1878-1880)
- First Boer War (1880-1881)
Production
Production years: 1871-1876
Exact Mk I figures are not separately recorded and are complicated by the large-scale conversion of Mk I rifles to the long-lever Mk II/Mk I-II pattern. Total Martini-Henry production across all four marks is estimated at 500,000 to 1,000,000, made at RSAF Enfield, Birmingham Small Arms, the London Small Arms Company, and the National Arms & Ammunition Company.
Origin
Country of origin: United Kingdom
Designer: Friedrich von Martini (action); Alexander Henry (rifling)
Discontinued: 1876
Notes
The Mk I was officially listed as 'Mk1' only until 20 October 1871, before the mark system was formalised. Its short lever demanded more cocking effort than soldiers liked, and a wartime/peacetime program converted large numbers of Mk I rifles to the improved long-lever Mk II configuration, so genuine unmodified first-pattern Mk I rifles with the safety catch, brass axis pin, and button-head ramrod are now scarce. Production of the Mk I ran roughly 1871-1876 at the Royal Small Arms Factory Enfield, with additional manufacture by Birmingham Small Arms (BSA), the London Small Arms Company, and the National Arms & Ammunition Company. The .577/450's early thin rolled-brass foil cartridges were prone to deforming and sticking in black-powder-fouled chambers -- the extraction failures later blamed at Isandlwana in 1879 -- a problem resolved by solid-drawn brass cases from the mid-1880s.
Background
When officials worried that the recoil of a full-power infantry rifle would be too punishing, the Martini-Henry was deliberately built heavy at the muzzle to tame the kick of the enormous .577/450 black-powder round; even so, the cartridge's recoil became legendary among recruits. The short-lever Mk I drew enough complaints about the force needed to cock it that the Army redesigned the lever within six years -- yet the action proved so durable that decades-old Martini-Henrys and Khyber Pass copies were still being recovered from tribal arsenals in Afghanistan well into the 21st century.