I use them for interim cleanings. Works great when the bore is still warm. I have removed the bronze brushes from mine and I don't drag them around in the sand. Put a couple of drops of CLP up near the start, it makes it pull smoother. Wets, then mops it dry.

Abrasive foreign objects. That's funny. What foreign objects are you talking about? Same stuff going through the bore but its going 1 fps rather than 3000 fps with a huge flame behind it. Some of you crack me up.