Hi all. I got a one piece .22 cleaning rod from Walmart. On the end of it is a little adapter that screws on so you can put different size accessories on it. The problem is that is a little larger than the rod itself, is made of some kind of cheap alloy and has a waffled type surface for grip. I could feel it dragging the inside of the barrel and it made me nervous. I measured it and it is .210 wide. Should I worry about this scoring the barrel and go get a better one with a brass fitting? Thank you.