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7.35×51mm Carcano

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7.35×51mm Carcano
Name7.35×51mm Carcano
OriginKingdom of Italy
Service1938–1945
Used byKingdom of Italy
DesignerSocietà Nazionale Officine di Torino
Design date1938
Production date1938–1945
Parent6.5×52mm Mannlicher–Carcano (partial)
Case typeRimless bottlenecked
Bullet7.35 mm
Case length51 mm
Bw1128 gr (nominal)
Vel1732 m/s (approx.)
En12160 J (approx.)

7.35×51mm Carcano The 7.35×51mm Carcano is an Italian intermediate rifle cartridge introduced in 1938 for service with Regio Esercito and associated units during the late interwar period and World War II. Developed amid doctrinal debates in Rome and influenced by contemporary small arms trends in Berlin, Moscow, and Paris, the round represented a compromise between the older 6.5×52mm Mannlicher–Carcano used in the Carcano rifle series and modern intermediate calibers adopted by other powers. Production and fielding were limited by industrial constraints tied to events in Fascist Italy and the broader strategic demands of the Second World War.

History and Development

The development of the 7.35×51mm cartridge occurred within the Italian ordnance community centered at Società Nazionale Officine di Torino and the Ufficio Tecnico del Regio Esercito, reflecting debates involving figures from the Regio Esercito and arms designers who monitored developments in Germany and Soviet Union. Pressure from senior officers returning from colonial campaigns such as those in Ethiopia and observers of the Spanish Civil War prompted a search for increased terminal performance, leading to a shift from the 6.5×52mm cartridge adopted in the 1891 pattern rifles produced at Terni and Modena. The new chambering and its soft-point bullet with an offset weight were approved in 1938 amid production expansions at firms including Fiocchi and Società Anonima Giovanni Vitali.

Cartridge Design and Specifications

The 7.35×51mm cartridge is a rimless, bottlenecked case 51 mm long, firing a 7.35 mm projectile designed with a partial hollow-point and a lead tip offset intended to induce yaw and improve wounding. Designers at SNOD and technicians from the Ministero della Guerra specified a 128-grain (nominal) bullet with a muzzle velocity target near 732 m/s, achieving energy figures competitive with contemporary rounds used by Wehrmacht and Red Army rifles. The cartridge dimensions required modified magazines and feed ramps in rechambered Mannlicher–Carcano actions produced at arsenals in Turin and Rome, and the round's primer and powder choices were standardized under directives from the Direzione Generale Artiglieria e Genio.

Military Use and Service

Introduced into frontline units of the Regio Esercito in 1938–1939, the 7.35×51mm saw limited distribution to line infantry regiments, Bersaglieri units, and some colonial garrisons during the early phases of World War II operations including campaigns in Albania and actions in North Africa. Logistical complications, ammunition shortages, and the persistence of 6.5×52mm stocks meant many formations retained the older chambering, creating mixed-caliber issues noted in correspondence between field commanders and the Comando Supremo. German allies in the Pact of Steel sometimes inspected captured supplies, and a number of rifles were later converted or rechambered in the field by units operating in cooperation with elements of the Wehrmacht and the German-occupied territories.

Ballistics and Performance

Ballistic testing conducted at Italian arsenals compared 7.35×51mm performance against 6.5×52mm and contemporary cartridges such as the 7.92×57mm Mauser and the 7.62×54mmR. The 7.35 mm projectile produced greater wounding potential at typical combat ranges due to its design promoting yaw, while retaining flatter trajectory characteristics than some heavy full-power rifle cartridges at similar weight classes. External ballistics modeling used tables from trials at facilities near Taranto and range calculations referenced by the Regio Esercito staff showed effective point-blank ranges adequate for the prescribed infantry engagement doctrine of the late 1930s.

Firearms Chambered for 7.35×51mm Carcano

Primary weapons rechambered or manufactured for the 7.35×51mm included variants of the Carcano M1891 series such as short and long rifle patterns produced at the Arsenale di Terni and carbines issued to cavalry and mechanized units. Specialized sniper and parade rifles retained the chambering in limited numbers, and a number of training rifles at depots in Rome and Naples used the round for marksmanship training. After Italy's 1943 armistice and the division of forces, both the Italian Social Republic and Allied-captured depots contained stocks of 7.35×51mm rifles inspected by representatives of the United States Army and the British Army.

Ammunition Variants and Loadings

Ammunition types produced included ball, gallery, and reduced-charge training rounds manufactured by firms such as Fiocchi and state arsenals at Terni. The standard ball load featured a 128-grain soft-point with an offset weight arrangement; tracer and blank loadings were produced in smaller quantities for armored units and parade use. Wartime exigencies prompted improvised reloading and handloads in depot workshops under guidelines from the Direzione Generale delle Armi.

Legacy and Collecting =

Postwar, the 7.35×51mm cartridge became a subject of interest for collectors and historians specializing in Italian military history and small arms of the Second World War. Museums in Turin, Rome, and Florence hold examples of rifles and ammunition, while specialist collectors and auction houses in London, New York City, and Milano document surviving lots. Ammunition scarcity and the uniqueness of the bullet design make original specimens sought-after items among curators, researchers, and reenactors focusing on late-1930s Italian ordnance. Category:Rimless cartridges