I have one just like it in 7mm mag, and no, the bolt function is not as smooth as those with the bare steel, polished bolts. Mine has been used enough that it has smoothed up quite a bit. You might want to use a very mild abrasive and a buffing wheel to remove the factory finish to the bolt, and leave it "in the white", with a light coating of oil. Polish only enough to remove the finish, and I would stay away from the locking lugs, or at least be careful you don't polish to the point you change angles / dimensions..
Larry