I just picked some up to give it a try. Earlier today I had done a minor cleaning on my ML so figured it was reasonably clean. Then I shot some of this stuff down the bore and it was still filthy in there. Not sure how it works on centerfire yet but it seems to be the ticket for muzzleloaders.

Ha, I just realized I also picked up the same gun cleaning box that is pictured on the forum.

I used the TC stuff on a couple of different guns and it removed a lot of stubborn carbon that I apparantly missed.