Abstract: Deleterious effects of friction between bullets and the barrel of a firearm are reduced by improving the lubricity of the surface of the bullet by coating the same with molybdenum disulfide according to a method that includes heating the bullets to be coated to open the pores thereof and then agitating the bullets and molybdenum disulfide with an impacting instrumentality to drive the molybdenum disulfide against the bullet to be deeply absorbed therein. The bullets are also polished and burnished.