Gun drillin in a cnc lathe.....who's dun it?

[Milling man]

Least accurate method of drilling a hole.

You're absolutely right! But I did not have the slightest desire to rotate a workpiece with dimensions of about 10x30x1 inches)))))
The curvature of the axis of the hole with a diameter of 8mm (0.3 inches) and a depth of 300mm (12 inches) was about 10-20 microns (about 0.0007 inches).