Grabbed an old carborundum dbl side 6" stone that was part of my inheritance from my folks a few years ago. The course side was Ok but the fine side was packed up.
Tried the non-clor 'brake-kleen' because that is all Ive got, wont harm gun finish or plastic (so far), guess that is why it wont cut that stone crud either.
Then I saw the bore cleaning bottles.....hmmm...Shooters Choice or Hoppe's? Spread a good smear of Hoppe's across the crud, let it soak, wet it again and another application then wiped every direction with a waste cloth. Looked better so I did it again, gave the glazed over crud a bi-directional rub with a brass bristle brush, resoaked and went out to work.
At day's end it looked pretty clean, only a couple of spots I should do again, but this was pretty painless; stone is useable as is and by doing my water flush as Ive been doing for some years now (think Water Stone rather than Oil Stone) it should be fine.
Fwiw, I studied up last snow-in about water vs oil and the compared edge finish and it sold me on water. For a hard pocket stone spit is great, better than plain tap water.
Last edited by gcrank1; 05-02-2019 at 10:49 AM.