On another forum I once had an interesting, albeit fruitless, discussion with a well-known gun editor re the proper method of cleaning rifle bores. His thread was pushing some muzzle protector gizmo. I asked him how could my aluminum cleaning rod be any more damaging to rifling at the crown than a copper clad lead bullet jammed through the bore at extremely high pressure? His answer was cleaning rods will damage the threads at the crown because ... he says they will. Then he proceeded to get nasty and closed the thread. Oh well. Recess is over.
A few years ago the retired gunsmith who introduced me to African hunting also introduced me to bore snakes. He gave me a "cheap Chinese knockoff" in a zip lock bag. He'd picked up a box of them at a gunshow somewhere and used them as promotions. It didn't seem to work well if used as directed but I quickly found a better way. Removing the rifle bolt, I always clean from the chamber towards the muzzle. This ensures all crud is pushed out of the gun and not left in the chamber (i.e. cleaning from muzzle end towards chamber). I cut strips of rag in appropriate sizes to compress tightly in the bore: about size of my middle finger for 404J and little finger for 30-06). Holding the rifle muzzle down, I drop the brass end of bore snake into chamber and down through the bore. Then I step on the brass end and start pulling the snake through as I lift the rifle upwards. Repeat step-and-pull till the loop end of bore snake is at open chamber. Place the piece of rag in the loop and step-and-pull till the rag is pulled all the way through the bore. The tighter the fit, the better it cleans. Solvent can be added to rag as needed. Repeat till no residue on the rags. Every so often I screw a small shotgun brush (usually 28 gauge) onto final length of three piece cleaning rod, lock the rod section into variable speed portable drill, and clean the chamber, usually before cleaning the bore.
Anyway, that's the way I do it. No need for gizmo crown protectors. And I get my barrels squeaky clean. Also, don't need to assemble and disassemble rods, brushes, etc.