I have a problem with the cnc thing, they are no more accurate than an old style machine tool, just more flexible when it comes to swapping from job to job,
And a cheap machine operated by a good tradesman will beat one every time on accuracy , its the man operating the machine who has the skill , not the machine , ok its easier on a good machine, but that's about it .
I know a little of how accurate these things are as I have reconditioned both types
I'm always amazed at the length airgun shooters go to find the perfect pellet/hit a target. From bits of wool on the end of the gun to having a hamster and other assorted objects.
Fantastically anoraky project though. I have to applaud it.
I'm a springer shooter so put the gun in a vice won't work for me!