I took a snow day today and was watching some videos on polishing the Ruger American bolt to get rid of the zip sound when cycling I took a green scouring pad like you use on dishes to it with some oil and it helped quite a bit one guys video he used a buffing wheel on a bench grinder with polishing compound but looks like that compound might get down in the bolt and I’m not very steady when it comes to messing with small things I can’t hang on to them very well lol