I don't know the answer to this one, but just to clarify, are you repainting the stock or trying to paint the gun or something else to patch your stock? Only reason I ask is I have found that the same color Cerakote will vary from C-series to H-series. Based on what you are painting will determine which one you use, and may affect recommendations. It may even require a custom mix if you are anal about it and want it perfectly matched, which will be trial and error.