Gunsmithing Finish Options for SS Barreled Action?

[forsyth793]

New Bolt Action Rifle in the works and I am researching finish options. It seems the options are endless. What is the finish that's on the Stiller Actions?
Any Recommendations?
1; Cerekote
2; Melonite
3; Blakened Stainless
4; Polymer Finish
5; Others?

 

[bptactical]

Brushed, blasted

 

[zac_c]

I like dura coat

 

[Hunt]

Coatings are for loose(r) tolerance bolts. I run blasted finishes on tight actions like Bordens, BATs, etc.