CLP is not really a bore cleaner, although in a pinch you can use it as such. It does nothing for copper fouling.
The "C" part of CLP really means that it provides a "cleaning action" for the moving parts.
The CLP keeps fouling soft, and allows moving parts to force it out of the way.
Ordinary Hoppe's #9 will do much better, or you can soak it over night in Kroil.
The faster way is to buy some "Tornado" brushes.
www.brownells.com/aspx/NS/store/productdetail.aspx?p=9791&s=NOTE: I don't know why they make these in rifled calibers, they only really work in shotguns.
In shotguns they work GREAT.
In extreme cases, you can wrap a little FINE steel wool, or better yet some copper "Chore Boy" around a well used bore brush, chuck it in a drill and run it at medium speeds, keeping it moving at all times.
This is the ONE and ONLY situation where you can use a drill and brush on a firearm barrel.
Don't forget to scrub the CHAMBER as well.