The United States Cartridge Company was in formed in 1869 by Civil War veteran General Benjamin Butler. Over the next half-century, the company produced the whole spectrum of cartridge-related products including a few bullet molds. Interestingly, bullet molds are not mentioned in company catalogs of 1888 or 1914, but R. H. Chamberlain (in "Three Similar Bullet Molds", The Gun Report, July 1990, p. 62-63) notes that bullet molds in two sizes were mentioned in the 1881 catalog; the smaller size, for the Winchester 1873 rifle, selling for $0.90, and the larger size, for "Sporting and Military" cartridges, retailing for $1.20.

During the time the company was in business they amassed a large collection of firearms which were used to test various combinations of loadings. The USCC collection was sold at auction in the 1920's and occasional pieces marked with the company stamp are still encountered in the collector's market. USCC bullet molds are pretty scarce, but easily identified due to the unambiguous markings. Most examples seen are in 45 caliber. They are quite similar in overall appearance with the UMC and Whitney molds. It is not clear if the company manufactured these molds themselves, or purchased them elsewhere, adding the company stamp before reselling them. These two molds clearly show the company stamping. Notice how the two hemi-molds are pinned together with a swaged rivot with split metal on the surface.