8 x 60 Spitz
Encyclopedia
The 8x60mm S is an uncommon rimless
Rim (firearms)
A rim is an external flange that is machined, cast, molded, stamped or pressed around the bottom of a firearms cartridge. The rim may serve a number of purposes, the most common being as the place for the extractor to engage...

 bottlenecked centerfire cartridge
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...

 of German origin, dating back to the interbellum period between World War I
World War I
World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

 and World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

. As is customary in European cartridges the 8 denotes the 8 mm bullet caliber
8 mm caliber
This article lists firearm cartridges which have a bullet in the to caliber range.*Length refers to the empty cartridge case length.*OAL refers to the overall length of the loaded cartridge.All measurements are in mm .-Pistol cartridges:...

 and the 60 denotes the 60 mm (2.362 in) case length. The 8x60mm S can, due to its 83.6 mm (3.291 in) overall length, easily be chambered in standard sized Mauser 98 bolt action rifles.

History

After World War I
World War I
World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

, the Allied forces signed the Treaty of Versailles
Treaty of Versailles
The Treaty of Versailles was one of the peace treaties at the end of World War I. It ended the state of war between Germany and the Allied Powers. It was signed on 28 June 1919, exactly five years after the assassination of Archduke Franz Ferdinand. The other Central Powers on the German side of...

. This Treaty prohibited the use of standard military weapons and ammunition by Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

. However, civilian hunters didn't want to give up on this great round, so a new cartridge was designed by the German arms manufacturer Deutsche Waffen und Munitionsfabriken
Deutsche Waffen und Munitionsfabriken
Deutsche Waffen- und Munitionsfabriken Aktien-Gesellschaft , known as DWM, was an arms company in Imperial Germany created in 1896 when Ludwig Loewe & Company united its weapons and ammunition production facilities within one company...

 (DWM). Extending the 7.92x57mm Mauser
7.92x57mm Mauser
The 8×57mm IS is a rimless bottlenecked rifle cartridge. The 8×57mm IS was adopted by the German Empire in 1905, and was the German service cartridge in both World Wars...

 cartridge case by 3 mm (2 mm of lengthened body plus 1 mm of lengthened neck) created the 8x60mm S. The 8x60mm S bullet diameter is 8.20 mm (.323 in) as found in the 8x57mm IS.

The new cartridge used the same bullet and therefore only the chamber of the rifle had to be modified (reamed out by 2 mm plus 1 mm of neck extension) to accommodate the slightly longer case. This operation was easily performed on Gewehr 98
Gewehr 98
The Gewehr 98 is a German bolt action Mauser rifle firing the 8x57mm cartridge from a 5 round internal clip-loaded magazine that was the German service rifle from 1898 to 1935, when it was replaced by the Karabiner 98k. It was hence the main rifle of the German infantry during World War I...

 and Karabiner 98k
Karabiner 98k
The Karabiner 98 Kurz was a bolt action rifle chambered for the 8x57mm IS/7.92×57mm IS cartridge that was adopted as the standard service rifle in 1935 by the German Wehrmacht. It was one of the final developments in the long line of Mauser military rifles...

 rifles.

8x60mm

Since this chamber reaming operation is also possible for earlier I-bore rifles, 8x60mm chambered rifles (without the S or any other further additions) also exist. 8x60mm rifles sport the earlier tighter 8.07 mm (.318 in) I-bore as found in the 8x57mm I.

To avoid potentially serious accidents, it is important to distinguish clearly between cartridges loaded for these two different bullet diameters, and only fire them in appropriately chambered/barrelled rifles.

Cartridge dimensions

The 8x60mm S has 4.16 ml
Litre
pic|200px|right|thumb|One litre is equivalent to this cubeEach side is 10 cm1 litre water = 1 kilogram water The litre is a metric system unit of volume equal to 1 cubic decimetre , to 1,000 cubic centimetres , and to 1/1,000 cubic metre...

 (64 grains
Grain (measure)
A grain is a unit of measurement of mass that is nominally based upon the mass of a single seed of a cereal. From the Bronze Age into the Renaissance the average masses of wheat and barley grains were part of the legal definition of units of mass. However, there is no evidence of any country ever...

) H2O cartridge case capacity. A sign of the era in which the 8x60mm S was developed are the gently sloped shoulders. The exterior shape of the case was designed to promote reliable case feeding and extraction in bolt-action rifles, under extreme conditions.



8x60mm S maximum C.I.P. cartridge dimensions. All sizes in millimeters (mm).

Americans would define the shoulder angle at alpha/2 ≈ 14.1 degrees. The common rifling
Rifling
Rifling is the process of making helical grooves in the barrel of a gun or firearm, which imparts a spin to a projectile around its long axis...

 twist rate for this cartridge is 240 mm (1 in 9.45 in), 4 grooves, Ø lands = 7.89 mm, Ø grooves = 8.20 mm, land width = 4.40 mm and the primer type
Percussion cap
The percussion cap, introduced around 1830, was the crucial invention that enabled muzzleloading firearms to fire reliably in any weather.Before this development, firearms used flintlock ignition systems which produced flint-on-steel sparks to ignite a pan of priming powder and thereby fire the...

 is large rifle.

According to the official with C.I.P. (Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives
Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives
The Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives is an international organisation whose members are 14 states, mainly European....

) guidelines the 8x60mm S case can handle up to 405 MPa (58740 psi) piezo pressure. In C.I.P. regulated countries every rifle cartridge combo has to be proofed at 125% of this maximum C.I.P. pressure to certify for sale to consumers.

Contemporary use

Mostly Mauser
Mauser
Mauser was a German arms manufacturer of a line of bolt-action rifles and pistols from the 1870s to 1995. Mauser designs were built for the German armed forces...

 Gewehr 98
Gewehr 98
The Gewehr 98 is a German bolt action Mauser rifle firing the 8x57mm cartridge from a 5 round internal clip-loaded magazine that was the German service rifle from 1898 to 1935, when it was replaced by the Karabiner 98k. It was hence the main rifle of the German infantry during World War I...

 and Karabiner 98k
Karabiner 98k
The Karabiner 98 Kurz was a bolt action rifle chambered for the 8x57mm IS/7.92×57mm IS cartridge that was adopted as the standard service rifle in 1935 by the German Wehrmacht. It was one of the final developments in the long line of Mauser military rifles...

 rifles were rechambered for this caliber. Other rifles, not rarely based on the Mauser action, were chambered for this cartridge too.

The 8x60mm S offers compared to its parent cartridge, the 8x57mm IS, about 1 to 2 % extra muzzle velocity due to its slightly larger case capacity and higher maximum operating pressure. This results in a flatter trajectory and better performance at longer range.

The popularity of the 8x60mm S peaked just after World War I and continued throughout the 1930s and 1940s. Today the cartridge is almost obsolete. No or very few rifles are produced for this round. Only two mainstream manufacturers (RWS and Prvi Partizan), along with some other smaller companies like Nolasco and Sologne, continue to produce the cartridge for hunting.

Loaded with short light bullets it can be used on small European game like roe deer
Roe Deer
The European Roe Deer , also known as the Western Roe Deer, chevreuil or just Roe Deer, is a Eurasian species of deer. It is relatively small, reddish and grey-brown, and well-adapted to cold environments. Roe Deer are widespread in Western Europe, from the Mediterranean to Scandinavia, and from...

 and chamois
Chamois
The chamois, Rupicapra rupicapra, is a goat-antelope species native to mountains in Europe, including the Carpathian Mountains of Romania, the European Alps, the Tatra Mountains, the Balkans, parts of Turkey, and the Caucasus. The chamois has also been introduced to the South Island of New Zealand...

. Loaded with long heavy bullets it can be used on big European game like boar
Boar
Wild boar, also wild pig, is a species of the pig genus Sus, part of the biological family Suidae. The species includes many subspecies. It is the wild ancestor of the domestic pig, an animal with which it freely hybridises...

, red deer
Red Deer
The red deer is one of the largest deer species. Depending on taxonomy, the red deer inhabits most of Europe, the Caucasus Mountains region, Asia Minor, parts of western Asia, and central Asia. It also inhabits the Atlas Mountains region between Morocco and Tunisia in northwestern Africa, being...

, moose
Moose
The moose or Eurasian elk is the largest extant species in the deer family. Moose are distinguished by the palmate antlers of the males; other members of the family have antlers with a dendritic configuration...

 and brown bear
Brown Bear
The brown bear is a large bear distributed across much of northern Eurasia and North America. It can weigh from and its largest subspecies, the Kodiak Bear, rivals the polar bear as the largest member of the bear family and as the largest land-based predator.There are several recognized...

. The 8x60mm S offers very good penetrating ability due to a fast twist rate that enables it to fire long, heavy bullets with a high sectional density
Sectional density
Sectional density is the ratio of an object's mass to its cross-sectional area. It conveys how well an object's mass is distributed to overcome resistance. For illustration, a needle can penetrate a target medium with less force than a coin of the same mass...

. The 8x60mm S can be used in countries which ban civil use of former or current military ammunition. The 8x60mm S rimmed sister cartridge, the 8x60mm RS, is also not popular in central Europe for the same reasons as the 8x60mm S.

The 8x60mm S is very popular in European countries like France where the possession of rifles in their original military caliber is tightly regulated: It allows French licensed gun owners to possess rifles based on the Mauser
Mauser
Mauser was a German arms manufacturer of a line of bolt-action rifles and pistols from the 1870s to 1995. Mauser designs were built for the German armed forces...

 Gewehr 98
Gewehr 98
The Gewehr 98 is a German bolt action Mauser rifle firing the 8x57mm cartridge from a 5 round internal clip-loaded magazine that was the German service rifle from 1898 to 1935, when it was replaced by the Karabiner 98k. It was hence the main rifle of the German infantry during World War I...

 system under the less constraining "hunting rifle" category.

The also rare 8x64mm S
8x64mm S
The 8x64mm S is a rimless bottlenecked centerfire cartridge developed as a military service round for the German Army who never issued it...

 cartridge offers a comparable rechambering option for Mauser Gewehr 98 and Karabiner 98k rifles sporting 8 mm S-bores. Due to its larger case capacity the 8x64mm S chambering offers better ballistic performance than the 8x60mm S.

Handloaders
Handloading
Handloading or reloading is the process of loading firearm cartridges or shotgun shells by assembling the individual components , rather than purchasing completely assembled, factory-loaded cartridges...

 can also produce this round, by altering a .30-06 Springfield
.30-06 Springfield
The .30-06 Springfield cartridge or 7.62×63mm in metric notation, was introduced to the United States Army in 1906 and standardized, and was in use until the 1960s and early 1970s. It replaced the .30-03, 6 mm Lee Navy, and .30 US Army...

 case and using a standard 8 mm bullet. Prvi Partizan
Prvi Partizan
Prvi Partizan is an ammunition manufacturer, located in Užice, Serbia. Founded in 1928 as FOMU - Fabrika Oružje Municija Užice. The company produces ammunition for civilian and military consumers in a variety of calibers in various loadings. Their products are available worldwide...

 is a major supplier of brass components for European 8x60mm S Handloaders
Handloading
Handloading or reloading is the process of loading firearm cartridges or shotgun shells by assembling the individual components , rather than purchasing completely assembled, factory-loaded cartridges...

.

See also


External links

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