Iosso Products Bore Brush 6.5mm Cobalt Blue Fiber Multiple Use

The Iosso Eliminator Bore Brush (Model 19008) is a 6.5mm/265 caliber cleaning brush wound with a proprietary cobalt blue synthetic fiber that is thicker and stiffer than traditional brass or bronze brushes, allowing safe back-and-forth scrubbing action. Its tighter winding and higher fiber density per inch deliver faster, more thorough removal of copper, lead, plastic wad, and carbon fouling compared to conventional bore brushes.