The first Remington conversions were available in 1868. They were a five shot .46 cal. The Colt Thuer conversion (front loading tapered cartridge) also came about in 1868. The Colt Richards conversion of the 1860 were made from 1872-1878, the 1851/1861 navy conversion starting in 1873. The Richards-Mason conversions were manufactured in 1877-1878.
|