For 7mm. 6.5CM, .308, .270, 5.56, 7.62 etc. am of the Copper Equilibrium School, so I don't remove copper as there is never "excess", just what is needed. Hoppes #9 and CLP. Tetra on bolt lugs.
12 ga. Brenneke slugs...Hoppes #9 and CLP.
In my .44s and 45-70s I NEVER shoot anything but cast lead and the bullets are correctly sized to the bore, so just using Hoppes #9 for cleaning and Break Free CLP for very light lube and metal protection. Metal is sealed with Tetra for sliding surfaces.
Even with thorough cleaning I come back a week or two later and run a caliber specific RamRodz down every bore to see if it picks up anything.
