I don't know if I would be purchasing moly from an auto parts store. It is critical that the product for coating bullets and bores is pure moly, without any additives, and the finer the size the better. A moly paste is a good way to coat your bore, but using powdered moly can work as well. Try and avoid handling your bullets with bare hands. I got my moly from Rose Mill, Google them. I purchased the Super Fine moly which measures 1.5 microns and costs $48/lb (don't spill the container in the house). No problem getting it shipped to Canada.
The easiest way to coat your bullets is to pour them into a pill bottle with an eigth of a teaspoon of moly powder. Put the pill bottle in your tumbler for an hour or two, then pour the bullets onto a heavy paper towel laid over some newspaper. Rub the bullets vigorously, then pour them onto a clean paper towel and repeat, now they are ready to load.