What works best for soaking Barrels for Copper & Carbon ?
Thanks Max
Although most shooters wouldn't try this because of the reagents involved I periodically patch out the bore with CTC which is a powerful carbon solvent. It will even remove carbon from the matrix of the barrel steel. Unlike bore solvents which don't actually dissolve carbon. Straight nitro benzene at 90% will dissolve copper and most other soft metals very quickly. I give the barrels this treatment once every couple of hundred shots. Believe me it really cleans them.
Andy.