Just wondering if its just me, but everytime I shoot my M4 I get a lot of fouling up to the 2 gass holes in the barrel. I think its lead cause it comes out on the patch as shiny little bits when cleaning. Its a bear to get out. I use shooters choice, which seems to help but it takes a lot of brush strokes to get it out. Ive tried different ammo but it still does it. Should I just clean it and leave what ever doesnt come out or do others get there barrel perfectly clean after shooting?
Thanks in advance,
Gerry