Jarmann M1884
Kongsberg Vaapenfabrikk · Rifle · Out Of Production · 1884
Also known as: M1884/87, M1887/90
Overview
The Jarmann M1884 was a bolt-action repeating rifle designed by Norwegian engineer Jacob Smith Jarmann, adopted by Norway and trialed/adopted in small numbers by Sweden. It used a distinctive split-bridge turn-bolt receiver fed by an 8-round Kropatschek-style tubular magazine under the barrel, with a magazine cut-off allowing single-shot use. Most production took place at Kongsberg Vaapenfabrikk in Norway.
Specifications
| Weight (empty) | 4500 g (158.7 oz) |
| Overall Length | 1320 mm (51.97") |
| Barrel Length | 850 mm (33.46") |
| Action Type | Bolt Action |
| Firing Mechanism | Striker Fired |
| Trigger Type | Single Stage |
| Magazine Capacity | 8 rounds |
| Magazine Type | Tube |
| Muzzle Velocity | 485 m/s (1591 fps) |
| Maximum Range | 2400 m (2625 yd) |
| Barrel Rifling | Right Hand |
| Frame Material | Steel |
| Barrel Material | Steel |
| Stock Material | Wood |
Calibers
- 10.15×61mmR Jarmann · primary — also known as 10.15mm Jarmann
Features
- Firing modes: Repeating
- Feed systems: Tubular Magazine, Single Shot
- Safety mechanisms: Magazine Cutoff
- Features: Split Bridge Receiver, Tubular Magazine, Magazine Cutoff, Volley Sights
Variants
- Jarmann M1884/87 — Upgrade
- Jarmann M1887/90 — Upgrade
Service history
Operators
- Royal Norwegian Army · adopted 1884 · as M1884
- Swedish Army
Production
Estimated total produced: 30,000 · Production years: 1884-1894
Roughly 28,000–30,000+ produced in Norway plus about 1,500 in Sweden
Origin
Country of origin: Norway
Designer: Jacob Smith Jarmann
Discontinued: 1894
Notes
Superseded in Norwegian service by the Krag–Jørgensen from the mid-1890s. The original black-powder loading was later updated with smokeless powder and steel-jacketed bullets.
Background
The Jarmann action was so robust that its split-bridge mechanism was later repurposed into a Norwegian whaling harpoon gun, a rifle design that went on to hunt whales rather than men.