Recently, we started using a popular product called Strike Hold, a cleaner, lubricant and protectant (CLP) for metallic items, weapons in particular. Since we have been using it, cleaning the firearms after a session at the range is quicker and easier.
This is the before and after shot of my 20 gauge shotgun barrel before and after spritzing the product in the barrel and running a couple of patches through it. It replaces both the solvent and oil products previously used.