The .45 Mars Long is an experimental centerfire pistol cartridge developed in the late 19th century. The similar .45 Mars Short used the same cupro-nickel-jacketed bullet in a case shortened to 0.66 inch. The bullet has two deep cannelures, and the case is crimped into both. The case mouth is chamfered on the outside to fit flush into the forward cannelure. The cartridge headspaces on this conical forward crimp. This elaborate bullet seating was necessary to withstand the violent feed mechanism of the Mars Automatic Pistol. The case has a thin rim and deep extractor groove in comparison to most rimless pistol cartridges.[1] The Mars cartridges were publicized as the most powerful handgun cartridges through the early 20th century, but fewer than 100 pistols were made and manufacture ceased in 1907. Ballistically the cartridge falls between the .45 Super and .45 Winchester Magnum.
mars, long, topic, this, article, meet, wikipedia, notability, guidelines, products, services, please, help, demonstrate, notability, topic, citing, reliable, secondary, sources, that, independent, topic, provide, significant, coverage, beyond, mere, trivial, . The topic of this article may not meet Wikipedia s notability guidelines for products and services Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention If notability cannot be shown the article is likely to be merged redirected or deleted Find sources 45 Mars Long news newspapers books scholar JSTOR February 2023 Learn how and when to remove this template message The 45 Mars Long is an experimental centerfire pistol cartridge developed in the late 19th century The similar 45 Mars Short used the same cupro nickel jacketed bullet in a case shortened to 0 66 inch The bullet has two deep cannelures and the case is crimped into both The case mouth is chamfered on the outside to fit flush into the forward cannelure The cartridge headspaces on this conical forward crimp This elaborate bullet seating was necessary to withstand the violent feed mechanism of the Mars Automatic Pistol The case has a thin rim and deep extractor groove in comparison to most rimless pistol cartridges 1 The Mars cartridges were publicized as the most powerful handgun cartridges through the early 20th century but fewer than 100 pistols were made and manufacture ceased in 1907 Ballistically the cartridge falls between the 45 Super and 45 Winchester Magnum 45 Mars LongTypePistolPlace of originUnited KingdomProduction historyDesigned1899ManufacturerKynochSpecificationsCase typeRimless straightBullet diameter11 40 mm 0 449 in Neck diameter12 06 mm 0 475 in Shoulder diameter12 07 mm 0 475 in Base diameter12 65 mm 0 498 in Rim diameter12 57 mm 0 495 in Rim thickness1 07 mm 0 042 in Case length27 76 mm 1 093 in Overall length35 66 mm 1 404 in Ballistic performanceBullet mass type Velocity Energy220 gr 14 g FMJ 1 200 ft s 370 m s 700 ft lbf 950 J Source s Textbook of Automatic Pistols 1 MUNICION ORG 2 References edit a b Wilson R K Textbook of Automatic Pistols pp 230 231 Plantersville SC Small Arms Technical Publishing Company 1943 450 Mars Long Case MUNICION ORGExternal links edit 450 Mars Long on MUNICION ORG Spanish Archived 2008 11 20 at the Wayback Machine nbsp This ammunition related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title 45 Mars Long amp oldid 1186193018, wikipedia, wiki, book, books, library,
