Any of the ammonia solvents will cause a brash brush or a brass jag to show color. However, many shooters who decided to "lose the bronze brush" found that they had accuracy problems a year or so later with high pressure cartridges. Most of them found that plastic brushes were not aggressive enough to keep the throat area of the bore clean, and as a result they had developed carbon rings or extremely hard carbon deposits in the bore area that totally wrecked accuracy. Once there, and once packed almost to the consistency of ceramic from repeated carbon fouling, it was extremely hard to remove and to restore accuracy in a barrel.
You can use the ammonia solvents, but simply don't use a brass jag or a brass brush immediately before checking to see if your barrel is clean or not because it shows or does not show any blue tint on a patch. You can get a false clean and not have the barrel completely clean by using the wrong tools for the job.