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Colt Navy Model 1861 Richards Mason Conversion .38 cal The revolver was chosen by the Army in 1872, with the first order shipping in the summer of 1873 for 8,000 revolvers. [ 4 ] After the success of the Colt Single Action Army and Colt's conversion of existing percussion revolvers to Richards-Mason conversions, Mason went on to design Colt's ...
In 1873 Colt performed the same conversion on the M1851 and M1861 revolvers for the US Navy in .38 rimfire. [6] Along with William Mason he was granted patents from 1871 to convert percussion revolvers into rear-loading metallic cartridges revolvers. Those converted revolvers are nowadays identified as the "Richards-Mason Conversion". [7]
Another rarity in the 1851 Navy production is the .40-caliber model, only 5 were made in 1858 for testing by the U.S. Navy Bureau of Ordnance. Identifying features of the First Model Squareback (Serial 1 to ~1250) are the wedge screw beneath the wedge and the wedge notch on top of the cylinder pin (Photo Serial No. 2).
The Colt 1860 Army uses the same size frame as the .36 caliber 1851 Navy revolver. The frame is relieved to allow the use of a rebated cylinder that enables the Army to be chambered in .44 caliber. The barrel on the 1860 Army has a forcing cone that is visibly shorter than that of the 1851 Navy, allowing the Army revolver to have a longer cylinder.
The frame of early Open Top revolvers were marked COLT'S/PATENT, later models sported the so-called "Two July" patent marking, also found on the 1851 Navy-, 1861 Navy- and 1860 Army-conversion revolvers. The "Two July" patents were also found on very early Colt Single Action Army revolvers.
The .38 Short Colt, also known as .38 SC, is a heeled bullet cartridge intended for metallic cartridge conversions of the cap and ball Colt 1851 Navy Revolver from the American Civil War era. [ 1 ] Later, this cartridge was fitted with a 0.358-inch (9.1 mm) diameter inside-lubricated bullet in the 125–135 grains (8.1–8.7 g) range.
The family of Colt Pocket Percussion Revolvers evolved from the earlier commercial revolvers marketed by the Patent Arms Manufacturing Company of Paterson, N.J. The smaller versions of Colt's first revolvers are also called "Baby Patersons" by collectors and were produced first in .28 to .31 caliber, and later in .36 caliber, by means of rebating the frame and adding a "step" to the cylinder ...
Two Colt Model 1851 Navy revolvers with same caliber and a Colt Root Model 1855 rifle, .36 cal. Colt Root carbines, .56 cal. The design of the Colt revolving rifle was essentially similar to revolver-type pistols, with a rotating cylinder that held five or six rounds in a variety of calibers from .36 to .64 inches. [1]