I've noticed theres some fouling left In the barrel after shooting powdercoated bullets in my .40 and Hoppes #9 doesn't seem to take it out very well. Neither does Hoppes copper remover and neither does Shooters Choice Lead remover. What are you all using to remove the powder coating fouling? I see people saying it brushes right out... but on my gun it doesnt. With those cleaners I'm having to scrub it fairly well to get it out (although not nearly as much scrubbing as when I was getting leading).