.30-40 cantilever
| .30-40 cantilever | |
|---|---|
|
|
| general information | |
| Sleeve shape | Rim cartridge |
| Dimensions | |
| Sleeve neck ⌀ | .338 inch, 8.6 mm |
| Floor ⌀ | .308 inch, 7.8 mm |
| Cartridge bottom ⌀ | .545 inch, 13.8 mm |
| Sleeve length | 2,314 inches, 58.8 mm |
| Cartridge length | 3.089 inches, 78.5 mm |
| Weights | |
| Bullet weight | Army cartridge 220 grains, 14.3 g |
| Technical specifications | |
| Speed v 0 | 2000 ft / s, 610 m / s |
| Bullet energy E 0 | 1910 ft-lbf, 2590 J. |
| Lists on the subject | |
The .30-40 Krag rifle cartridge, official name in the US Army , Cartridge, ball, caliber .30, Model 1898 , was launched in 1892 at the same time as the US Model 1892 Krag-Jørgensen rifle , the successor to the Springfield Model 1873 rifle and his subsequent variants, developed as an orderly cartridge for the US Army.
history
The predecessor of the .30-40 Krag cartridge was the .45-70 Government black powder cartridge used by the US Army since 1873 as an orderly cartridge in the Springfield Model 1873 . The .30-40 Krag was the first modern small caliber ammunition with smokeless powder of the American army. However, due to new requirements for military cartridges, it was relatively short-lived and was only used between 1894 and 1903 in the Spanish-American War and the Philippine-American War . Later it was only used until the withdrawal of the Krag rifles, which had been replaced by the more modern Springfield M1903 ; it was also used by some state militias.
The following machine guns in caliber .30-40 Krag were used by the US Army at the turn of the century:
- the multi-barreled Gatling machine gun Colt Gatling Gun Model 1893
- the Colt-Browning Model 1895 Machine Gun , one as a gas operated weapon designed machine gun .
One of the most famous uses of the Krag carbine and its .30-40 ammunition was the storming of the San Juan Hills in Cuba by the Rough Riders under the command of Teddy Roosevelt in the Spanish-American War. The storm was also successful because it was aided by fire from three Gatling Guns , cal. 30-40 , commanded by 1st Lieutenant John "Machine Gun" Parker .
Most of the .30-40 Krag ammunition for the Army was manufactured by the Frankford State Arsenal near Philadelphia , PA on the river called Frankford Creek . These cartridges are stamped on the bottom with the letters F and A and the date of manufacture (month, year).
technology
The .30-40 Krag is a center fire cartridge with a bottle neck sleeve with a rim. The number .30 denotes the approximate caliber in inches, the number 40 describes the powder weight in the unit of measurement grain and refers to the powder load with modern, so-called smokeless nitrocellulose (NC) powder. Full jacket round bullets with a weight of 220 grains corresponding to 14.3 g were used for the army. Private manufacturers such as Winchester , Remington Arms and others produced hunting and sport cartridges with full and partial jacket and hollow point bullets for civilian use.
Ballistic data from Winchester Western Cartridges around 1960:
- Bullet weight 180 grains, 12 g, muzzle velocity: 2,470 ft / s, 753 m / s, muzzle energy 3,308 J.
- Bullet weight 220 grains, 14.3 g, muzzle velocity: 2,200 ft / s, 671 m / s, muzzle energy 3,200 J.
Civil use
Like all US Army cartridges, the .30-40 was used for hunting and sport shooting from the very beginning. Various companies such as Remington and Winchester with the lever action rifle Model 1895 manufactured single-shot and repeater for this cartridge. As hunting ammunition, it was used to shoot down all of the large game found in North America; it can be regarded as the first modern hunting cartridge produced in large quantities in the USA and was therefore offered in various loads and projectile types.
Even today, the .30-40 ammunition is still produced for shooting occasions and as a blind cartridge for historical occasions; for hunting it has largely been replaced by modern cartridge types.
Production of weapons in caliber .30-40 Krag for civil use:
- Winchester Model 1885 high-wall
- Remington Rolling Block
- Winchester Model 1895 Lever Action
- Ruger No. 1, Ruger No. 3
- Thompson Center Encore
literature
- Norm Flayderman: Flayderman's Guide to Antique American Firearms . Krause Publications, Iola, WI 1971, ISBN 0-87349-313-3 .
- WHB Smith & Joseph E. Smith: The Book of the Rifles . The Stackpole Company, Harrisburg, PA 1965, LCCN 63-012562 .
- Konrad F. Schreier Jr .: United States Machine Guns . Normount Technical Publications, Wickenburg, AZ 1975, ISBN 0-87947-028-3 .
- Robert Q. Sutherland & RL Wilson The Book of Colt Firearms Published by Robert Q. Sutherland, Kansas City, MS, 1971
- John Charles Davis, Maj.USA, US Army Rifle and Carbine Adoption Between 1865 and 1900 , BA Northern Illinois University, Dekalb, IL, 1995
- Melvin M. Johnson, Captain USMCR and Charles T. Haven, Automatic Weapons of the World , William Morrow & Co. New York, NY, 1945
- Winchester Repeating Arms Co. Ballistics of Winchester Western Cartridges , Form 157 100,000 CPC