American Civil War Relics Catalog

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Antique Cartridges - Cartridges - .50-70 and .50-55 Rifle and Carbine Cartridges

Early .50-70 Martin-Primed Commercial Cartridge - UMC

Item #: M005

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M005 Early .50-70 Martin-Primed Commercial Cartridge - UMC

Description: Scarce example of a .50-70-450 Martin-primed commercial cartridge manufactured by the Union Metallic Cartridge Company (U.M.C.) of Bridgeport, Connecticut. This specimen features a flat-nosed, belted lead bullet roll crimped into an elongated copper case measuring approximately 1.821” in length. The case is cylindrically throated, extending roughly .739” down from the mouth.

The head is of folded construction and incorporates a re-entrant fold for added strength, a characteristic feature of early U.M.C. manufacture. The central primer has a rounded profile, consistent with Martin-primed commercial production. This represents a very early and seldom encountered commercial variant.

The case shows a few spots, along with a dent where the throat meets the body and a small adjacent ding to the upper right. Overall, this remains a scarce and difficult example to find from U.M.C.

Headstamp: None

Measures: OAL 2.325” CL 1.821” RD .658” HD .560” CM .523” BDaCM .502” Weight 640 Grains

Reference: "The History and Development of Small Arms Ammunition” Hoyem Vol. II, Page 50

Reference: "Some Early 50-70 Cartridges by the Union Metallic Cartridge Company” Hoovestal, IAA Journal 490, Pgs. 22-25 (No. 6)

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We DO NOT sell modern guns, all our inventory will be Pre-1898 and are classified by the ATF as antiques and require no government paperwork to own.

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Ian Workman

American Civil War Relics & Military Antiques