I have a bunch of old Colt Snake Guns from my Dad. They really are hand made works of art, and out of the box, IMHO, the most buttery smooth double actions ever (the smoothest I’ve ever squeezed was a S&W that had “work” done to it).
It used to be that the only way to get metal into the 1 thou range was to undermll and then stone and hand polish to super high tolerances. For their day that’s why the Colts were so much more expensive. Today they'd probably be 20k, but today you can CNC to one thou. QED. The CNC machine also doesn’t get drunk, not show up for work, have an attitude, etc.