Your method for degreasing?

[chuck watts]

I've had good luck for many years using automotive brake cleaner available at any auto supply store. This product behaves exactly like carbon tetrachloride and dries in just a few moments leaving no residue whatsoever. Care must be taken not to get this product on paint or plastic as it will damage it immediately. I've used it to clean bores with great success also. IMO, this is the best degreaser available. Personally, I've never had it cause damage to any type of bluing. Its highly flammable so if you try it use caution!