If u have access to the tools, here are the steps you should take:
1. The recoil lug is surface ground perfectly flat
2. The front shoulder of the action is machined perpendicular to the center line of the action
3. The internal barrel threads are uniformed. If you would like the threads straightened by recutting with a single point tool, this can be done at an additional charge. If you are not supplying an action, I would recommend a custom action, if for no other reason than resale value.
4. The internal bolt lugs are machined perfectly flat and perpendicular to the bore of the action
5. The rear lugs on the bolt are machined perfectly flat and perpendicular to the center line of the bolt
6. The bolt face is machined perfectly flat and perpendicular to the center line of the bolt
7. The bolt and action are then lapped to seat the two surfaces together
8. The action is bead-blasted for a matte finish and various surfaces polished and stoned then blued
9. Firing pin protrusion is checked and adjusted, if necessary
10. The trigger is dis-assembled, stoned, and reassembled then adjusted to maintain a constant crisp trigger pull
11. Barrels are indicated within .0002 TIR and then crowned
good luck
