This is a development by gunmaker Paul Paternoss in Austria.   

The .338 Norma Magnum was originally developed as a long-range sport shooting wildcat cartridge by the American sport shooter Jimmie Sloan with the help of Dave Kiff, owner of Pacific Tool and Gauge, who made the reamers and headspace gauges. It was designed as a way...

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This was listed by Stahl in their 1899-c1902 catalogs and was part of the 65mm case length series. Based upon the 360 Express case   

One of a pair of rimmed and rimless cartridges introduced by Werner Reb in the late 1980’s and based on the M88 case. (Dixon Ref. W83)        

One of a pair of rimmed and rimless cartridges introduced by Werner Reb in the late 1980’s and based on the M88 case. (Dixon Ref. W82)       

This is a development from around 2008 although there is not very much info available on this at the moment.      

New development by Blaser and loaded for them by Norma that was announced at the 2019 IWA show in Germany and based on the 404 Jeffery case albeit with a slightly rebated rim.   

   This is MB34 from Dixon. The 8.25x42R MB like the 8x42R MB types, exists in two non-interchangeable case types (see also MB33). The 8.25x42R MBb is very similar to the 8x42R MBb (MB32) having the same lower shoulder and what appears to be a 42mm case....

     This is MB33 from Dixon. The 8.25x42R MB like the 8x42R MB types, exists in two non-interchangeable case types (see also MB34) which appear to use the same cases as the two 8x42R MB types (MB31, MB32) but loaded with 8.25mm bullets. These...

The 8.2x72R Express can be mistaken for the 8x72R Brenneke, however it was not made by any German manufacturers and the bullet diameter is larger, and the case has a different taper. This was a popular cartridge in Czechoslovakia and loaded by them up to about 1950....

The 8.15x50R M Target as well as the 8.15x52R M Target was only listed in the 1900 RWS/Utendoerffer catalogue and has a gradual ‘b’ type shoulder.   

The exact date of introduction of the 8.15x46,5R Frohn is not clear, but is was during the early 1890’s and it became one of the most popular target cartridges of its era. It was offered by almost all manufacturers of the era. (Dixon Ref. GSP6)

During the late 1800’s to the beginning of the 20th century competing German manufacturers produced cartridges that were very similar in dimensions but which were not interchangeable. Since the mid 1880’s efforts were made to standardise the dimensions of these...

This is the rimless version of the 8x75RS Behr and was introduced just after it during 1907 with the ‘S’ indicating loading with the .323” bullet but never gained any widespread popularity. The specimen below with EXPERT headstamp was loaded around 2000 by Horneber...

The 8x75RS Behr was developed by DWM for Behrs Weapon Works of Suhl (Simson) using the 9.3x74R case that was necked to 8mm, (in this case for the S-type or .323” bullet). This version was the first to be produced and was the only one of these four types shown in the...

Someone tried to load this with a shotgun primer.

     Written on case: “8x74 Keller Magnum (made from .348 case). Exists also with steel base.” This is a 2 piece case. Bullet Diameter:         8.11mm        Case Length:   73.80mm...

     The bottom version is a reproduction for collectors. It was manufactured in South Africa by OPM.

The 8x72R Brenneke was a popular European sporting caliber designed for drilling rifles was based on the English 360 Express case. It was originally listed as the 8.1x72B (for Brenneke) and believed to have been first produced by RWS/Utendoerffer with the "D.R.G.M....

This necked Collath case is also based on the English 360 case type and should not be confused with the tapered 8x72R Brenneke (W12) or 8.2x72R Austrian (GSP23) '360' types. This is a scarce cartridge but is known with both the earlier Collath hs and the later 'TESCO'...

Most likely produced by RWS during the period 1898-1909. Not much is known at the moment on the history of the Nimrod cartridges   

This is the rimmed version of the 8x68 Magnum. There are very few, if any original specimens known. An RWS headstamped version has been reported but no actual specimen has been seen yet. There is also an unheadstamped version that also seems rare. The version below is...

Developed during the mid-1930’s as a more powerful 8mm version than the existing 8x64 or 8x75. Power is about on par with the 375 H&H and it might also have been a German attempt to compete with the medium/large British calibers for African Hunting. (Dixon Ref....

     Bullet Diameter:       8.19mm Mouth Diameter:      9.06mm Neck Diameter:        9.08mm Shoulder Diameter  12.54mm Head Diameter:       13.79mm Unfinished...