Why use grease of any sort? Why not a dry film lubricant that adhers to the metal surfaces, doesn't come off, does not collect dirt or other contaminants, enables the bolt to work freely. A one time application! You ask how thick is this stuff? 100 nanometers thick. It reduces the co-efficient of friction and is applied like water to metal. One requirement is that all oil be removed before application. It will not damage blueing but rather darken it while putting a phos nitride surface on metal. It has other applications on your rifle all of which are good. I don't use grease or any relative thereof on my guns.