I know you can buy repro 1851 Navy revolvers in 44 cal now from a variety of sources, but back in the 19th century, did Colt ever really make a 44 cal 1851 Navy? I thought, for both Remington and Colt guns, the term "navy" was applied to 36 caliber models and "army" to 44 caliber, perhaps because of the preferences in caliber by those respective service branches.