10.15 x 61R
Encyclopedia
The 10.15×61 mmR cartridge
was developed for use in the Norwegian
Jarmann
rifle
. It is a rimmed, centerfire cartridge, and was initially loaded with black powder and a lead bullet
wrapped in paper. Later cartridges were loaded with smokeless powder
and had a lead bullet coated in steel (Full metal jacket
, or FMJ).
The earliest version had a load of 4.46 g of blackpowder, and a projectile weighing 21.85 g. This gave a muzzle velocity of 500 m/s. The later version, with a full metal jacket, was loaded to produce the same muzzle velocity.
All in all, more than 3 million cartridges were manufactured for military use in Norway, as well as more than 2 million ordered from abroad. The majority of these were sold with the Jarmann rifles when the Norwegian Army introduced the Krag-Jørgensen
.
The following variations on the 10.15x61mmR cartridge have been identified:
Cartridge (firearms)
A cartridge, also called a round, packages the bullet, gunpowder and primer into a single metallic case precisely made to fit the firing chamber of a firearm. The primer is a small charge of impact-sensitive chemical that may be located at the center of the case head or at its rim . Electrically...
was developed for use in the Norwegian
Norway
Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...
Jarmann
Jarmann M1884
The Norwegian Jarmann M1884 was among the first bolt action repeating rifles to be adopted in the Western world. Its adoption, and subsequent modifications, turned the Norwegian Army from a fighting force armed with single-shot black powder weapons into a force armed with modern repeating weapons...
rifle
Rifle
A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves cut into the barrel walls. The raised areas of the rifling are called "lands," which make contact with the projectile , imparting spin around an axis corresponding to the...
. It is a rimmed, centerfire cartridge, and was initially loaded with black powder and a lead bullet
Bullet
A bullet is a projectile propelled by a firearm, sling, or air gun. Bullets do not normally contain explosives, but damage the intended target by impact and penetration...
wrapped in paper. Later cartridges were loaded with smokeless powder
Smokeless powder
Smokeless powder is the name given to a number of propellants used in firearms and artillery which produce negligible smoke when fired, unlike the older gunpowder which they replaced...
and had a lead bullet coated in steel (Full metal jacket
Full metal jacket bullet
A full metal jacket is a bullet consisting of a soft core encased in a shell of harder metal, such as gilding metal, cupronickel or less commonly a steel alloy. This shell can extend around all of the bullet, or often just the front and sides with the rear left as exposed lead...
, or FMJ).
The earliest version had a load of 4.46 g of blackpowder, and a projectile weighing 21.85 g. This gave a muzzle velocity of 500 m/s. The later version, with a full metal jacket, was loaded to produce the same muzzle velocity.
All in all, more than 3 million cartridges were manufactured for military use in Norway, as well as more than 2 million ordered from abroad. The majority of these were sold with the Jarmann rifles when the Norwegian Army introduced the Krag-Jørgensen
Krag-Jørgensen
The Krag-Jørgensen is a repeating bolt action rifle designed by the Norwegians Ole Herman Johannes Krag and Erik Jørgensen in the late 19th century. It was adopted as a standard arm by Denmark, the United States of America and Norway...
.
The following variations on the 10.15x61mmR cartridge have been identified:
- 10.15 Ball, rounded tip, lead bullet wrapped in paper, black powder (possible just used for tests)
- 10.15 mm Ball, flat tip, lead bullet wrapped in paper, black powder
- 10.15 mm Ball, flat tip, full metal jacket, smokeless powder
- 10.15 mm Gallery, round lead bullet (for use indoor / short rangers)
- 10.15 mm Gallery, same as above but with a ring crimped around the neck of the case
- 10.15 mm Blank, unpainted wooden 'bullet', smooth case
- 10.15 mm Blank, same as above but with six long ridges pressed into the case
- 10.15 mm Blank, same as above but with six long ans six short ridges pressed into the case
- 10.15 mm Dummy, red wooden 'bullet' going all the way to the bottom of the case, six long ans six short ridges pressed into the case and two rings crimped around the neck of the case.
- 10.15 mm Dummy, as above but with just the six long ridges and rings around the neck.
- 10.15 mm Dummy, as above but with brown wooden 'bullet' and two rings crimped around the neck of the case (tests only).
- 10.15 mm Harpoon round, a blank round crimped shut, used only in the M28 harpoon gun.
- 10.15 mm Harpoon round, as above but closed with a crimped lid.