There has always been a love/hate relationship between American and British revolver designers. Samuel Colt’s patents in 1836 for a practical revolver gave him a monopoly on percussion revolvers for nearly 20 years. Rather than pay Colt royalties on his patents, firearms designers looked for ways to circumvent his death grip on the revolver market. British designers such as Robert Adams, William Tranter, and James Kerr, fashioned the actions of the revolvers they designed to be what we would call double-action but were, in fact, single-actions that used the pull of the trigger to rotate the cylinder and force the hammer to rise and fall on the next chamber. Colt’s single-action patents required the shooter to manually cock the hammer, take aim, and then pull the trigger to fire the cartridge. Colt marketed his design as being the one that gave the shooter the best shot at accuracy and denounced the single pull of the trigger operation of his English rivals as a method that placed too much effort and pressure in the hands of the shooter, thus throwing off aim. This was perhaps the first example of the trigger pull debate that continues day.