I use Eds Red to remove powder fowling (we actually add a few other ingredients, which i cannot share until we decide what to do with the concoction).
I read recently in Gun Tests magazine that BMG .50 was the highest rated bore cleaner in a test that featured Sweets, Hoppe's (not 9), WipeOut (I think, but not sure), and a few others. sorry i don't have the magazine with me now (at work) to give the accurate report. Perhaps its online someplace. The real interesting thing was that despite its efficacy, BMG .50 could be left in the barrel for quite awhile without damaging anything. This is in contrast to Sweets.