I had been using CRC brake clean in the green can (not the red can) for years. I talked with Ty at Barnes bullets one time and happened to ask him what they used to neutralize their copper solvent CR-10. He said they use the same product.
My bore scope shows me what works and what doesn't. I prefer Bore Tech Eliminator and still use CRC brake clean as last step in cleaning.
CRC brake clean:
https://www.zoro.com/crc-brake-clea...gclid=CLSTxtXcic8CFRSIfgodjjADRQ&gclsrc=aw.ds
My bore scope shows me what works and what doesn't. I prefer Bore Tech Eliminator and still use CRC brake clean as last step in cleaning.
CRC brake clean:
https://www.zoro.com/crc-brake-clea...gclid=CLSTxtXcic8CFRSIfgodjjADRQ&gclsrc=aw.ds