Originally Posted by
bcp477
CAR wax COULD be harmful - because it contains fine abrasives. Acrylic clear coat finishes on cars are designed to respond well to this. Under heat and pressure, in a gun bore, perhaps it would tend to be more destructive than might seem reasonable. On the other hand, perhaps it would only help to "lap" the bore. I think that I am not brave enough to try it, though.
Products like JPW (Minwax paste "finishing wax" is another very similar product), if designed for fine furniture, do not contain abrasives...only solvents for cleaning, in addition to the carnauba wax.