The round was considered powerful for the day, producing a muzzle energy of between 330 and 430 ft⋅lbf (450 and 580 J) depending on the loading. A number of small changes to the Mars and the cartridge were made and the pistol that resulted was called the "Bergmann–Bayard 1903".
This pistol was adopted by the Spanish army in 1905 as the "Pistola Bergmann de 9 mm. modelo 1903". Unable to find a German manufacturer to complete the Spanish order for 3,000 pistols, Theodor Bergmann turned to a Belgian manufacturer, Anciens Etablissements Pieper (who used the trademark "Bayard"), to complete the order. The final pistol, modified by AEP, was known as the "Bergmann Bayard 1908", or in Spain as the "Pistola Bergmann de 9 mm. modelo 1908". Although adopted in 1908 first deliveries did not take place until two years later. Meanwhile, other manufacturers such as Campo-Giro had adopted the 9mm Bergmann–Bayard round and, due to its long history of use in Spanish submachine guns, carbines and pistols, today it is most commonly known as the "9mm Largo".
The cartridge headspaces on the mouth of the case.[1] With 125 gr (8.1 g; 0.29 oz) jacketed projectiles, the muzzle energy is 336 foot pounds, slightly lower than a standard-pressure 9×19mm Luger. Compared to the 9×19mm Luger +P, performance is also lower but at lower pressure in the 9×23mm Largo. While external dimensions are almost identical, the 9×23mm Largo is a very different cartridge from the modern, high-performance 9×23mm Winchester. Firing the thicker-walled 9×23mm Winchester round in a 9×23mm Largo pistol is dangerous, as old 9mm Largo pistols cannot handle the pressure generated by the 9×23mm Winchester. Performance is similar to the contemporary 9×23mm Steyr, but the cartridges were developed independently and their dimensions are just different enough to render them non-interchangeable.
Firearms chambered for 9mm Largo
This list is incomplete; you can help by adding missing items. (February 2011)
^ abcdWilson, R. K. Textbook of Automatic Pistols, p.233. Plantersville, SC: Small Arms Technical Publishing Company, 1943.
^"Catalonia's Attempt at a Pistol: the Blowback Isard". YouTube. Archived from the original on 2021-12-22. Retrieved February 17, 2020.
External links
Las pistolas Bergmann y Campo-Giro (I) by Juan L Calvo
Las pistolas Bergmann y Campo-Giro (y II) by Juan L Calvo
May 13, 2023
23mm, largo, similarly, dimensioned, cartridges, 23mm, largo, bergmann, bayard, bayard, long, centerfire, pistol, cartridge, developed, 1901, bergmann, mars, pistol, bergmann, bayard, largotypepistolplace, origingerman, empireservice, historyused, byspaindenma. For similarly dimensioned cartridges see 9 23mm The 9 23mm Largo 9mm Largo 9mm Bergmann Bayard 9mm Bayard Long centerfire pistol cartridge was developed in 1901 for the Bergmann Mars pistol 9mm Bergmann Bayard 9mm LargoTypePistolPlace of originGerman EmpireService historyUsed bySpainDenmarkProduction historyDesignerTheodor BergmannDesigned1901SpecificationsCase typeRimless taperedBullet diameter9 02 mm 0 355 in Neck diameter9 63 mm 0 379 in Base diameter9 91 mm 0 390 in Rim diameter9 96 mm 0 392 in Rim thickness1 2 mm 0 047 in Case length23 11 mm 0 910 in Overall length33 53 mm 1 320 in Primer typeSmall pistolBallistic performanceBullet mass type Velocity Energy127 gr 8 g FMJ 1 167 ft s 356 m s 384 ft lbf 521 J Test barrel length 150 mm 5 9 in Contents 1 Description and history 2 Firearms chambered for 9mm Largo 3 See also 4 Notes 5 External linksDescription and history EditThe round was considered powerful for the day producing a muzzle energy of between 330 and 430 ft lbf 450 and 580 J depending on the loading A number of small changes to the Mars and the cartridge were made and the pistol that resulted was called the Bergmann Bayard 1903 This pistol was adopted by the Spanish army in 1905 as the Pistola Bergmann de 9 mm modelo 1903 Unable to find a German manufacturer to complete the Spanish order for 3 000 pistols Theodor Bergmann turned to a Belgian manufacturer Anciens Etablissements Pieper who used the trademark Bayard to complete the order The final pistol modified by AEP was known as the Bergmann Bayard 1908 or in Spain as the Pistola Bergmann de 9 mm modelo 1908 Although adopted in 1908 first deliveries did not take place until two years later Meanwhile other manufacturers such as Campo Giro had adopted the 9mm Bergmann Bayard round and due to its long history of use in Spanish submachine guns carbines and pistols today it is most commonly known as the 9mm Largo At the same time the Bergmann Bayard model 1910 semi automatic pistol was adopted by the Danish military and remained in production until 1935 Left to right 9 23mm Largo 9 19mm Parabellum 9 23mm Winchester and 9 23mm Steyr The cartridge headspaces on the mouth of the case 1 With 125 gr 8 1 g 0 29 oz jacketed projectiles the muzzle energy is 336 foot pounds slightly lower than a standard pressure 9 19mm Luger Compared to the 9 19mm Luger P performance is also lower but at lower pressure in the 9 23mm Largo While external dimensions are almost identical the 9 23mm Largo is a very different cartridge from the modern high performance 9 23mm Winchester Firing the thicker walled 9 23mm Winchester round in a 9 23mm Largo pistol is dangerous as old 9mm Largo pistols cannot handle the pressure generated by the 9 23mm Winchester Performance is similar to the contemporary 9 23mm Steyr but the cartridges were developed independently and their dimensions are just different enough to render them non interchangeable Firearms chambered for 9mm Largo EditThis list is incomplete you can help by adding missing items February 2011 Anciens Establissements Pieper AEP 1 Bergmann Mars 1901 Pistola Bergmann Bayard de 9mm modelo 1903 Pistola Bergmann Bayard de 9mm modelo 1908 Bergmann Bayard M1910 Bergmann Bayard M1910 21Berthodl Geipel s Erfurter Maschinenfabrik VMP Vollmer EMP MPE Erma submachine gun Spanish made copy called m41 44 Astra Unceta y Cia SA 1 Esperanza y Unceta Campo Giro Modelo 1912 1913 1913 16 Esperanza y Unceta Astra 400 Modelo 1921 1921 1926 Unceta y Compania Astra 400 Modelo 1921 1926 1945 or 1946 Astra Model F selective fire broomhandle type pistol 1934 1935 Astra A 80 Astra Custom SPS IPSC racegun 1996 Arrizabalaga Arrizabalaga Sharp Shooter Arrizabalaga JO LO AR 1924 CETME A D S A Model 1953 submachine gun 1953 CETME C2 submachine gunComissio d Industries de Guerra CIG Pistol Isard Isard Pistol 2 Destroyer carbine and similar 9mm Largo carbines Ayra Duria et al Jose Luis Maquibar Onena Carbine Ignacio ZubillagaFabrica de Armas A Coruna Modelo 1941 44 submachine gun copy of the Vollmer Erma in 9mm Largo 1941 mid 1950s Copy of the Bergmann MP28 in 9mm Largo No maker Astra 400 Modelo 1921 1938 1940sFontbernat Labora Fontbernat M 1938 submachine gunLlama Gabilondo Llama Modelo IV Gabilondo Llama Modelo V Gabilondo Llama Modelo VII Gabilondo Llama Modelo VIII Gabilondo Llama Modelo ExtraParinco Model 3R submachine gun 1959 Republica Espanola Naranjero submachine gun Modified Bergmann MP28 RE Republica Espanola made Astra 400 Modelo 1921 1936 1939 Pistol F Ascaso 1937 1939Star Bonifacio Echeverria 1 Bonifacio Echeverria Star Modelo Militar 1920 1920 1921 Bonifacio Echeverria Star Modelo Militar 1921 1921 only Bonifacio Echeverria Star Modelo Militar 1922 1922 1931 Bonifacio Echeverria Star Modelo A early w flat backstrap 1924 1931 Bonifacio Echeverria Star Modelo A late w 1911 Colt style backstrap 1931 1983 Bonifacio Echeverria Star Modelo M slightly larger than A 1931 1983 Bonifacio Echeverria Star Modelo MD M w selective fire 1931 1983 Bonifacio Echeverria Star Modelo Super A A w quick takedown 1946 1983 Bonifacio Echeverria Star Modelo Super M M w quick takedown 1946 1983 Bonifacio Echeverria Star Modelo AS A w magazine safety quick takedown loaded chamber indicator 1956 1983 Bonifacio Echeverria Star Modelo MS M w quick takedown loaded chamber indicator 1956 1983 Star Model Z 45 Submachine gun Model Z 62 submachine gunSee also Edit9 mm caliberNotes Edit a b c d Wilson R K Textbook of Automatic Pistols p 233 Plantersville SC Small Arms Technical Publishing Company 1943 Catalonia s Attempt at a Pistol the Blowback Isard YouTube Archived from the original on 2021 12 22 Retrieved February 17 2020 External links EditLas pistolas Bergmann y Campo Giro I by Juan L Calvo Las pistolas Bergmann y Campo Giro y II by Juan L Calvo Retrieved from https en wikipedia org w index php title 9 23mm Largo amp oldid 1096069362, wikipedia, wiki, book, books, library,
