Newmuzzleman - This is just my opinion mind you, use it if you want.. T/C #13 is really not all that great of a product. I'd rather use 50/50 mix of isopropyl alcohol and car windshield washer fluid to swab and to drive water out of the bore. Like I said, use it if you want, but I really don't have much faith in the product. T/C of course pushes it, like bore butter, and why not.. they sell the stuff. I just think there are much superior products out there.