Not a good idea. One should avoid any products that have a petroleum base when using blackpowder. Petroleum promotes the formation of a black tarry residue in the barrel that is extremely hard to remove. As an alternative, try crisco or other natural (animal, vegetable) based product. I've had great success with Thompson Bore Butter. You use the stuff to season the bore as you would an iron skillet. Once seasoned, the bore is much easier to clean and requires less cleaning during a round of shots.
Noban