7 X 39 BERGMANN CARBINE
This was a DWM development during the 1930’s. The Bergmann cartridge was more powerful than the 7.9x33 because it utilised a larger case, but nothing came of the project.
7 X 36 MADSEN
Experimental military cartridge from late 50’s to early 1960’s from Denmark made by reforming existing 30-06 brass. It was loaded by Dansk Ammunitionsfabrik A/S because it is shown in a loading table made by them sometime after 1955. Not much is known of the rifle...
224 REMINGTON EXPERIMENTAL
401 MAGNUM
Herter's Inc. was a shooting/hunting mail-order supply company located in Waseca, MN, that was in business from 1893 until it went bust in the 1980’s as an ultimate result of the Gun Control Act of 1968 that put a serious dent on Herter's mail-order firearms business....
45/38 SALVO SQUEEZE BORE
The Salvo Squeeze Bore (SSB) is a system designed to increase hit probability and/or target saturation. This objective is attained through firing a number of projectiles with each shot through a barrel of special squeeze design. The projectiles are nested in tandem...
375 HEAVY EXPRESS SHORT ACTION MAGNUM
The Heavy Express range of cartridges was developed by Jim Busha, from Colorado Springs CO, and was based on the 348 Winchester case with the rim removed. They came in a variety of calibers, ranging from .240 to .500 caliber and in 2 different versions, namely the...
375 HEAVY EXPRESS MAGNUM
The Heavy Express range of cartridges was developed by Jim Busha, from Colorado Springs CO, and was based on the 348 Winchester case with the rim removed. They came in a variety of calibers, ranging from .240 to .500 caliber and in 2 different versions, namely the...
10mm MAGNUM
The 10mm Magnum is an extended length version of the 10mm Auto and was developed as a factory offered cartridge in the Automag IV pistol around 1992 by ex-California based AMT (Arcadia Machine & Tool Inc), which was later bought by IAI (Irwindale Arms Inc). The...
257 DURHAM JET
This is the 25 SOUPER (25-08) Improved, with a 40° shoulder.
375 HAWK-SCOVILL
The .375 Hawk/Scovill was designed by Bob Fulton and Dave Scovill and it is basically a .30-06 necked up to .375 inch with the Brown-Whelen shoulder configuration, meaning the shoulder is sharpened slightly and moved further forward, as opposed to the Ackley version...
224 McDONALD
Resembles the 22 Dasher, but with a longer body and shorter neck. The goal of this exercise is to get as much speed as possible from the case/bullet.
400 JAWS
Jordanian designed cartridge and available in 225, .250, .300, .350 and .400 JAWS. Cases were made for them by Quality Cartridge. JAWS = Jordanian Armaments and Weapons Systems
280/30 BRITISH (7×43)
280/30 FN FAL Rifle The following is an excellent article taken from historyofwar.org: (Antill, P. (29 July 2009), The EM-2 (Rifle No. 9, Mk 1): Britain's Original Bullpup Rifle, http://www.historyofwar.org/articles/weapons_EM-2_rifle.html) Background At the end of...
280 FRANKFORD ARSENAL EXPERIMENTAL
In 1951, tests were done at Frankford Arsenal with British .280 cal bullets that were supplied by ROF Radway Green using Cal .30 Light Rifle FAT 1E1 cases necked down to verify the performance of the British bullets. The first specimen was loaded with the 140gr....
280 ENFIELD
At the end of WW2 the British were one of the few major powers to not have a self-loading rifle in service. They were still using the .303 British No. 4 Lee Enfield dating from the late 19th century. Combat experience during both world wars questioned the need for...
45 WINCHESTER MAGNUM
The 45 Winchester Magnum was introduced in 1979 but was technically not a new design. It is dimensionally and balistically the same as the 45 NAACO that was developed for the Canadian military in 1959, but not adopted. It is a lengthened version of the 45 ACP, but...
28 Cal. US XPL
The notes I have with this cartridge states that it was originally from Bill Woodin via the collection of the late Peter Skala. It has been floating around in the unidentified tray for a long time and I have not been able to find any info either in the ECRA Database...
28 1,000-Yard DANGER SPACE (28 XPL BALL)
This is the version from 1913, with a larger capacity case.
28 1,000-Yard DANGER SPACE
Experimental cartridge from around 1910 in order to produce a cartridge that would give a continuous 1,000 yard danger space (not rising above the height of a man standing on level ground)
276 PEDERSEN
JD Pedersen started the development of his cartridge in 1923 at Springfield Armory. The first rifles were made in 1925, so test barrels were used in the beginning. There were a number of changes to the case as well as many different bullets were tested. The first case...
375 FLANGED MAGNUM IMPROVED
This is one of the various improved versions of the 375 Flanged Magnum
276 PATTERN 13 ENFIELD
As early as 1908, the Chief Superintendent of Ordinance Factories in Britain recommended to the Director of Artillery that .256 inch caliber ammunition to a new design should be made up for trail to gain experience with high velocity rimless cased ammunition. These...
5.8 X 42 CHINESE
China started development of the 5.8×42mm / DBP87 in 1979 and finished in 1987. The 5.8×42mm / DBP87 was designed to replace the Soviet 7.62×39mm cartridge used by the People's Liberation Army. The Type 95 / QBZ-95 (Chinese: 轻武器,步枪,自动, 1995; Pinyin: Qing wuqì,...
10mm GAUPILLAT
There is very little information available about the 10mm Gaupillat except a note from Erlmeier, Brandt stating that it was discovered at the 1975 Lucerne Arms show in a box labelled: Nombre 25 – Calibre 10m/m – Cartouches pour Revolvers a percussion centrale. It...
276 BRITISH XPL LAIRD-MENTAINE
This cartridge was based on a patent that was taken out by two French designers in 1908, namely Mentaine and Degaille with some input from Laird, a British engineer who appears to have been responsible for the production of the rifle at Coventry Ordnance Works, a...
375 EPSTEIN
This is one of a number of versions of the 458 Win Mag case necked down to .375 or alternatively the 338 Win Mag case necked up to .375. See also 375/338 Win Mag.
8mm – 06 ICL
The 8mm-06 ICL Increased Case/Capacity Load) is very similar to the 8mm-06 Ackley, the only difference is the neck length. This is one of a line of cartridges designed by Arnold and Vern Juenke. The first line of ICL cartridges were advertised from 1949 onwards in...
224 KAY CHUCK JUNIOR
info to follow
224 KAY CHUCK
Based on the 22 Hornet case. The first specimen below is with the original Sisk 50gr. bullet
27 BALL SIMPLEX (PROJECT SALVO)
This round was also developed by Olin Corporation in July 1952 based on the .30 Light Rifle case necked to .27 cal. Specimen has a GM jacket with steel core.
256 DOUBLE TAPER EXPERIMENTAL
This was developed in June 1928 by Frankford Arsenal with a double taper case under drawing FB-9887. This cartridge was also used in the trials to determine wounding power against flesh. It was part of the trials done by the Ordnance Department to investigate sub...
256 BANG EXPERIMENTAL
This cartridge dates from 1927 for the experimental BANG semi-auto rifle by Danish designer Søren Hansen Bang. It was sent to the US for military testing and despite some minor faults performed relatively well. John Garand used the Bang design to improve on his...
25 H.F. KOHLBACKER XPL
The following is an extract from IAA Journal 459:48-49 (Jan/Feb 2008) by the late Bill Woodin. H. F. Kohlbacker of Buffalo, New York, was a co-worker and contemporary of Charles Newton and was engaged in research and development for the Newton Arms Company, and later...
25 HAMBURG KRAG
In early 1912 Dr. F.W. Mann obtained 500 untrimmed Cal. 30 Krag draw pieces for experiments to design a .25 calibre high velocity rifle. Cases were formed by A.O. Niedner into various lengths and shoulder angles. Production of the .30 Krag had already been...
25 EXPERIMENTAL ON 30 KRAG CASE
This was a rimmed experimental cartridge dating from 1922 from Frankford Arsenal following the design of two rimless cartridges, (see HWS 1 p. 266). The rimmed version was made from empty 30-40 Krag (Cal. .30 Mod.1898) cases and used the same case capacity and bullet...
25 BALL SIMPLEX (PROJECT SALVO)
This round was developed by Olin Corporation in July 1952 based on the .30 Light Rifle case. The bottom specimen has a lead core bullet.
236 USN RIMMED
224 WINCHESTER E5 XPL
This was the final design in the series and was called the Cal. 224 Winchester E5 and dates from 1963. This was a bottlenecked case with a reduced rim.
224 WINCHESTER E4 XPL
The 224 Winchester E4 was an experimental cartridge and may have been based on the 25 Winchester case. There is no record of any rifle for this cartridge and it might have been used in a special test barrel.
224 WINCHESTER E2 BALL
This cartridge was developed from the 224 Winchester Experimental Ball to correct the pressure problems encountered during testing. It has a longer neck and utilised a lighter bullet. ...
224 WINCHESTER EXPERIMENTAL BALL
This is a prototype cartridge by Winchester in 1957 for the development of a .224 caliber cartridge for a light military rifle. Some of the early loads had to be removed because of high chamber pressures.
222 SPECIAL
This was part of the development of the 223 Remington. Because of concerns over chamber pressures, Armalite redesigned the 222 Remington case to increase powder space, while keeping the OAL relatively unchanged. In order to avoid confusion with the 222 Remington and...
222 SHORT MAGNUM SPECIAL
Experimental cartridge developed in 1965 by Frankfort Arsenal and was based on a shortened 222 Remington case. The bunter only had R – P, with the 222 Rem removed.
CAL. 22 Mod.1895 EXPERIMENTAL CARTRIDGE
The US Ordnance Department did some experimentation in 1893 regarding a sub .30cal rifle. Frankford Arsenal was instructed on the 4th of January 1895 to supply a .22 cal. case and bullets for testing. There were also plans to develop a .20 cal. rifle, but results of...
400 COR BON
The 400 Cor-Bon was designed by Peter Pi, the founder of Cor-Bon to produce 10mm Auto ballistics in a 45 Auto system. It is made by necking the 45 ACP to .40cal. with a 25 degree shoulder. It was designed for hollow points and the added velocity from this loading...
303/22 VICKERS
There were three versions of the .303/.22 Machine gun training cartridge developed between 1925 and 1929, but none ever entered service. They were intended for use in indoor 25 yard ranges in Vickers guns with specially modified barrels. The first pattern used an all...
45 WEBLEY
The 45 Webley cartridge was developed by American manufacturers (WRACO, UMC and Remington) from around 1875 to 1939. The 450 Short CF/Adams had been around since 1867 and was chambered in a variety of British and European revolvers and many ended up in the US but it...
375 DURHAM MAGNUM
The following is from P.O. Ackley's "Handbook for Shooters and Reloaders", Volume One: "The .375 Durham Magnum is the .338 Win Mag case necked up to .375 with a 35 degree shoulder angle to provide a very fine short .375 Mag cartridge with an overall length suitable...
22-06 DUPLEX (PROJECT SALVO)
This is a duplex loading of the 22-06 but with elongated neck. It was fired in a modified M1 rifle during the SALVO 2 trials and was also tested at Aberdeen Proving Grounds during January 1959. The rifle shown below is a modified M1 for the duplex test and was...
22-06 SIMPLEX (PROJECT SALVO)
Designed by Frankfort Arsenal for trials at Aberdeen Proving Grounds in 1957. Cartridge was unofficially called the 22-06.