Since I've had access to a Hawkeye borescope about any time I want it I've found that most cleaning routines aren't nearly as good as some folks think. My buddy was over here a few days ago to break in the new Shilen barrel he had installed on his Kimber 84M. He proudly pointed to white patches after a five minute soak with BoreTech carbon remover followed by dry patching then a 5 minute soak with BoreTech copper remover, patching it dry, and pronounced it clean. He was convinced that the white patch was proof that it was clean.
Wrong.
So I stuck the bore scope in the throat and just beyond. He was shocked at how much carbon and copper was clearly visible in the throat and the next couple of inches. The bore near the muzzle was pristinely clean, but the throat, the most important place to get clean during breakin, wasn't. And this was after exactly one (1) round.
The bottom line is that if you are serious about what it takes to clean your rifles, and it will vary from rifle to rifle and bullet to bullet, the way to learn it involves inspecting it with a borescope to find out what actually works because that's the only way to know when it is clean. Everything else is just guessing.
Fitch