.43 Spanish
The.43 Spanish / 11.15x57mmR was a centerfire rifle cartridge developed by Remington designers around 1867. It was used in early rolling block rifles that Remington manufactured for the government of Spain. The cartridge is also referred to as the.433 Spanish, "11mm Spanish", and identical cartridges for the US Peabody rifle were marked "U.M.C.
.43 Spanish

Union Metallic Cartridge Company · Public domain
- Name
- .43 Spanish 11mm Spanish 11.15×57mmR Spanish Remington U.M.C. 43-77
- Field
- rifle cartridge
- Period
- 1867
- Region
- United States
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Documentary summary
The.43 Spanish / 11.15x57mmR was a centerfire rifle cartridge developed by Remington designers around 1867. It was used in early rolling block rifles that Remington manufactured for the government of Spain. The cartridge is also referred to as the.433 Spanish, "11mm Spanish", and identical cartridges for the US Peabody rifle were marked "U.M.C.
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wikidata · Q15964371 · wikipedia · .43 Spanish
In this article
Key facts
Key facts
• Name —.43 Spanish 11mm Spanish 11.15×57mmR Spanish Remington U.M.C. 43-77 • Type — Rifle • Bullet —.439 in (11.15 mm) • Neck — Rimmed, Bottleneck • Shoulder —.462 in (11.73 mm) • Base —.522 in (13.26 mm) • Land —.433 in (10.99 mm) • Rim Dia —.629 in (15.98 mm) • Rim Thick —.085 in (2.16 mm) • Case Length — 2.255 in (57.277 mm) • Length — 2.845 in (72.263 mm) • Primer — Berdan • Illustration — Making of.43 Spanish cartridges in Union Metallic Cartridge Co. factory at Bridgeport, Connecticut, 1877
History
History
• Illustration —.43 Spanish rifle and tercerola, with its amunition. 3 pages The.43 Spanish cartridge was produced after Spain purchased the newly invented rolling-block action single-shot rifle. The breech-loading firearm, which was marketed by Sam Remington, impressed the Spaniards after their own evaluation. In 1869, the Spanish government put in an order for 10,000 rifles. In addition to the firearms, they wanted their own cartridge and Remington developed the.43 Spanish. It was produced in two variants: the bottleneck case.43 Spanish (11.15x57mmR Remington Spanish) and the straight-wall case.43 Spanish Reformado (11.4x57mmR Reformado). The cartridge was very similar to the.44-77 Sharps cartridge, except for the difference in the bore diameter. The Spanish military version of the cartridge was later upgraded in 1889 to a "heavier, brass-jacketed reformado bullet". While Remington stopped manufacturing the cartridge in 1918, its use in the United States became widespread after World War II because it was sold as a surplus. The cartridge was also used, obscurely, in the 'Improved Lee' or 'Remington-Lee' rifle that was tested by the British in 1887. This extremely rare piece, only 300 were made, was made purely for trials of the Lee bolt and box magazine system, when the British military were looking to convert to a repeating rifle. A British rifle, the Lee-Burton and the last of the.40 Enfield-Martini line, was made by the Enfield armoury. Remington produced their own design with the latest of Lee's design features, chambered in.43 Spanish. The trials favoured the Lee magazine and this was adopted in Britain, although the calibre chosen was the new.303 British.
"Poison bullet"
"Poison bullet"
The.43 Spanish used a.439 in diameter bullet that weighed 396 gr. Its 1280 ft/s was powered by 74 gr of black powder. Instead of solid lead bullet, the.43 Spanish used a brass-jacket bullet, which was considered unusual because cupronickel, gilding metal, and copper clad steel were preferred for bullet jackets during the period. It was also the reason why American soldiers suspected that the Spaniards used poison in their bullet during the Spanish-American War. It corroded in the tropics, producing a powdery pale green verdigris once they are exposed to high humidity or salty sea air over time. The brass component, however, improved bullet penetration.
Firearms chambered
Firearms chambered
• Argentine Modelo 1879, rifle and carbine • 1869 Spanish Peabody • Whitney–Burgess–Morse lever-action rifle (military version) • M1879 Remington–Lee
Places
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- United States
Primary material
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authority record
- Wikidata, structured authority record Q15964371:.43 Spanish
General reference · Wikidata
reference work
- “.43 Spanish”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.Roy Martin Marcot. The History of Remington Firearms. Lyons Press. 53. 2005. 978-1-59228-690-4.
- 2.Thombs, David A., and Barrett, Stephen P. The internet and firearms research with reference to the .43 Spanish Remington Rolling-Block and its ammunition, The Journal of the Historical Breechloading Small Arms Association, Vol.4, No.4, pp. 14–23
- 3..43 Spanish. Roberson Cartridge Company. 2019-12-12.
- 4.Fred A. Datig. Cartridges for Collectors: Center fire, rimfire, patent ignition. Borden Publishing Company. 1958.
- 5.Thoughts on the .43 spanish and the Remington Rolling-Block Rifle Black Powder Cartridge. www.blackpowdercartridge.com.
- 6.David F. Butler. United States Firearms: the First Century, 1776–1875. Winchester Press. 1971. 9780876910306.
- 7.Flatnes, Oyvind. From Musket to Metallic Cartridge: A Practical History of Black Powder Firearms. Crowood. 2013. 978-1-84797-594-2.
- 8.Alejandro de Quesada. The Spanish–American War and Philippine Insurrection. Bloomsbury Publishing. 92. 2012. 978-1-78096-353-2.
- 9.Woodend, Herbert. BRITISH RIFLES - Catalogue of the Enfield Pattern Room. HMSO. 38–40. 1981. 9780117719309.
- 10.Rottman, Gordon L. The Book of Gun Trivia: Essential Firepower Facts. Osprey Publishing. 182–183. 2013. 978-1-78200-621-3.
- 11.Philip Peterson. Standard Catalog of Military Firearms: The Collector's Price and Reference Guide. F+W Media. 315. 2011. 978-1-4402-2881-0.
- 12.Jerry Lee. The Official Gun Digest Book of Guns & Prices 2013. Krause Publications. 1229. 2013. 978-1-4402-3543-6.
- 13.Dan Shideler. Standard Catalog Of Remington Firearms. F+W Media. 104. 2008. 978-1-4402-2699-1.
Bibliography printed in the source article · 2
- Croft Barker. Shooting the .43 Spanish Rolling Block. Cistern Publishing, 2003.
- Thombs, David A., and Barrett, Stephen P. The internet and firearms research with reference to the .43 Spanish Remington Rolling-Block and its ammunition, The Journal of the Historical Breechloading Small Arms Association, Vol.4, No.4, pp. 14–23
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1- rifle cartridgeTerminology
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The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 17 August 2026.
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