I agree with Don, how can the cotton or nylon of the bore snake harm anything in the chamber, barrel, or crown . At the range, I use the bore snake for cleaning the barrel after every 10 shots (I alternate between 2 boresnakes). Once I get home, I give the standard patch and brush treatment. After a while and several trips to the range, I get to know how my rifle likes to be shot. Does it shoot better with a clean barrel, or does it like to have a few fouling shots to tighten things up? That's the fun part of figuring out the mystery of what makes your rifle happy.
Atlas