 on the chamber brush so that it literally will not go into the bore brush, so that you run it into the chamber, you're trying to get a little bit larger, and get in there and clean everything out. What I think may be happening, and I'm just kind of spitballing here, okay, is if that case won't go all the way into the chamber, it just almost goes in there, and there's a little coating of gunk or something in there,