I had been looking and reading about what to use to get rid of carbon in my barrels. Most all agreed that Ed's Red would do the job. But rather than mix my own concoction I just ordered it from Brownell's. I just finished cleaning 2 barrels with it and I must say it did a great job of getting most of the carbon out probably 95% in one and 90% in the other. It didn't get all of it but I think with regular use it will. Good stuff!