I've been reading alot about cleaning solvents and the chrome lined barrel. I've used "Hoppe's Benchrest #9" for years and before that plain old "#9". I've also used "Butches" which cleans the copper out of a Glock barrel very quickly.
It appears the above listed solvents can damage the underlayer of copper below the hard chrome if a hairline seperation occures.
My question is what is the safest cleaning solvent for the chrome lined AR barrel that is still very a effective cleaning solvent??????