I have a chamois that I use. Have had it for 41 years! Yeppers -41 years. Awesome - like a great pair of well worn blue jeans. Scraped the paint off of an old metal BandAid box and have carried the chamois in that container ever since.
Used all kinds of gun oil, grease etc. It is soft and plaint as ever.
An old gunsmith I used to run with years ago wouldl have a fit when I used a silicone rag. He always said the silacone always penatrated the metal to deep and give him fits when he had to blue one. Said sometimes it left the metal different shades if you got it in the light just right. I also used to build metal working machines for a business I ran. The powder coaters let me know under no circumstances do not us WD40 on the metal that gets powder coated. No matter how hard the would sandblast the could not get it all remove before powder coating. You could see the differnceen powder coated. I could not bring myself to use a silacon on guns. Figure just a precaution. Bill
b12---I have heard the same about silacone---Still can't get the info I'm looking for the high grade guns engraved receivers---Maybe I should call Krieghoff for their thoughts or maybe some jewelers would know----George