I was using Sweets for quite awhile I had heard and noticed it's a little potent. I decided to try the KG line but I noticed last week in a .270 I've been shooting for a friend that there was a ton of copper in the bore. I've been trying to develope a load for my friends .270 and haven't had any luck. I broke out the sweets on it after noticing how the KG failed to remove the copper and wow so much came out. Now I'm wondering if maybe a couple of those loads had more potential it was just the copper fouling. I was shooting GMX's that in the past seemed to be touchy to too much fouling in my 30-06. Opinions thoughts I know there are a ton of guys out there that way more than I do about this stuff.