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Air rifle
| Girandoni air rifle | |
|---|---|
 Girandoni system Austrian repeating air rifle, circa 1795, believed to have been taken on the Lewis and Clark Expedition | |
| Type | Air rifle |
| Place of origin |  Holy Roman Empire |
| Service history | |
| In service | 1780–1815 |
| Used by | Austrian Empire United States (Lewis and Clark) |
| Production history | |
| Designer | Bartolomeo, Girandoni |
| Designed | 1779 or 1780 |
| Specifications | |
| Mass | 4.5 kg (9.9 lb) |
| Length | 120 cm (3.9 ft) |
| Cartridge | spherical balls |
| Caliber | .46", 11.7 mm 146.3 grains (9.48 g), or .51", 13 mm, 201.49 grains (13.06 g) |
| Muzzle velocity | about 500 fps (152 m/s), 117 ft lbs (159 J) |
| Feed system | 20/21 round magazine or hopper |
| Sights | Iron |
The Girandoni air rifle was an air gun designed by Italian inventor Bartolomeo Girardoni circa 1779. The weapon was also known as the Windbüchse ("wind rifle" in German). One of the rifle's more famous associations is its use on the Lewis and Clark Expedition to explore and map the western part of North America in the early 1800s.
History and use
The Girardoni air rifle was in service with the Austrian army from 1780 to around 1815. Many references to the Girardoni air rifles mention lethal combat ranges of 125 to 150 yards and some extend that range considerably. The advantages of a high rate of fire, no smoke from propellants, and low muzzle report granted it acceptance. It did have problems and was eventually removed from service for several reasons decades after introduction. There was also a version sold to civilians after it was removed from military service. While the detachable air reservoir was capable of around 30 shots, it took nearly 1,500 strokes of a hand pump to fill those reservoirs. Later, a wagon mounted pump was provided. The reservoirs, made from hammered sheet iron held together with rivets and sealed by brazing, proved very difficult to manufacture using the techniques of the period and were always in short supply.
In addition, the weapon was very delicate and a small break in the reservoir could make it inoperable. It was also very different from any other weapon of the time, requiring extensive training to use.
The Lewis and Clark Expedition used the rifle in the demonstrations that they performed for nearly every Native American tribe they encountered on the expedition.
Design and capabilities
The rifle was 4 ft (1.2 m) long and weighed 10 lb (4.5 kg), about the same basic size and weight as infantry muskets of the time. It fired a .46 or .51 caliber ball and had a tubular, spring-fed magazine with a capacity of 20 balls. Some of the weapons were also made using a gravity fed magazine. Unlike its contemporary, muzzle-loading muskets, which required the rifleman to stand up to reload with powder and ball, the shooter could reload a ball from the magazine by pulling a transverse chamber bar out of the breech which allowed a ball to be supplied to it and which then rebounded back to its original position with the aid of a spring, all while lying down. Contemporary regulations of 1788 required that each rifleman, in addition to the rifle itself, be equipped with three compressed air reservoirs (two spare and one attached to the rifle), cleaning stick, hand pump, lead ladle, and 100 lead balls, 1 in the chamber, 19 in the magazine built into the rifle and the remaining 80 in four tin tubes. Equipment not carried attached to the rifle was held in a special leather knapsack. It was also necessary to keep the leather gaskets of the reservoir moist in order to maintain a good seal and prevent leakage.
The air reservoir was in the club shaped stock. With a full air reservoir, the Girardoni air rifle had the capacity to shoot 30 shots at useful pressure. These balls were effective to approximately 125 yd (114 m) on a full air reservoir. The power declined as the air reservoir was emptied. Design-wise, the air reservoir was similar to the disposable carbon dioxide cartridges used on some modern air guns.
Importance
The Girardoni air rifle was an important first. It was the first repeating rifle of a specific general kind to enter general military service. It was one of the first uses of a tubular magazine.
See also
References
- Wier, S.K. (2005). "The firearms of the Lewis and Clark Expedition" (PDF). p. 12. Retrieved 12 March 2013.
- Girardoni air rifle as used by Lewis and Clark. A National Firearms Museum Treasure Gun. at YouTube
- The Beeman article on Girardoni air rifles in the sources section and an article in the German gun magazine Visier (issue 1/2007, page 141) claim the caliber was actually .463" (11.75 mm).
- Die Entwicklung der Handfeuerwaffen im österreichischen Heere, 1896, Anton Dolleczek
- ^ https://books.google.co.uk/books?id=77hTDwAAQBAJ&pg=PR4&dq=Prenderghast+Firearms&hl=en&sa=X&ved=0ahUKEwjZ3cSWw-XoAhUEZcAKHSkeBkAQ6AEIJzAA#v=onepage&q=Girandoni&f=false
- A letter detailing regulations, "Signed, Vienna, 24th January 1788"; reproduced in Baker, G; Currie, C. The Austrian Army Repeating Air Rifle 2nd Ed., 2007.
- Military writer August Haller claimed in an 1891 treatise Die österreichische Militär-Repetier-Windbüchse that the first ten shots would be effective to about 150 paces, the next ten shots up to 120-125 paces, the next ten out to 100 paces, and then the remaining air pressure in the reservoir would be too low.
External links
- Beeman's History on Austrian Large Bore Airguns
- I Benemeriti Di Cortina D’Ampezzo
- (original 1780 example)
- Girandoni air rifle as used by Lewis and Clark. A National Firearms Museum Treasure Gun.
- Girandoni air rifle