What Drew says should work fine. There are also other aerosol cleaners specifically for plastic fouling. But you will still need to use the Frontier pads or brass or bronze bore brushes on a cleaning rod in an electric drill.
I was stunned and amazed at the amount of soggy plastic fouling that I dragged out of my 20 ga. bores after a few months of dedicated skeet shooting.

Last edited by DAM16SXS; 10/01/14 11:01 PM.

Dean S. Romig