I posted this on the old forum not knowing this one had opened.
Usually once a year or so (more so, than once a year

), I get my rifles out I hunt with and give them a quick cleaning. For years I've only used Gunslick Bore Foam. It does an incredible job removing copper and carbon fouling out of the barrel. For what ever sick reason, my custom tikka 6.5 CM I decided to do a deep clean. I cleaned it good with the Gunslick foam a couple weeks back letting it sit in the bore for three or four hours. I purchased a bottle of KG-12 copper remover. KG-12 is the undisputed king for removing copper. BTW the KG-12 is water based and has no ammonia so you can leave it in all night if you want.
Last night before bed, I took a cotton bore mop, soaked it in the bottle of KG-12 and ran it through the bore a couple of times. This morning I pushed the first cotton patch through. It came out yellow, the color of KG-12. Zero blue and the faintest hint of carbon fouling on it. The next few patches the yellow got less and less. Zero blue, zero carbon fouling.
My conclusion, I wasted $12 bucks on the KG-12. Gunslick does a great job sitting in the bore for a few hours. I see no need for anything else. Now, I just need to run a few rounds down the bore before heading out to hunt