That ^, to be specific.once you make the first pass, the first couple of inches will carry any debris back through the bore on the second pass. Then the first three or four inches will carry debris down the bore on the third pass..... and like that....
Well, he will if you ask him enough. Or not. Sometimes you have to beg and plead and tug on his shirt tail and whine and stomp your foot... and maybe even resort to handing him a really cruddy gun.and I'm not gonna tell anyone how to clean their firearm.
Understatement......I mean _REALLY_Cruddy
they rarely show visible crud.