While many different brands and types of reloading and casting lubrication are sold, Lyman Black Powder Gold is considered superior. This product is affordably priced and designed for use with long-range black powder cartridge guns.The Black Powder Gold lubricant was specifically formulated as a soft, easy-flowing product. When used with the right tube sizer, bullet lubrication is effortless. Keep in mind that for muzzle loaders, this lubricant can be used but must be applied by hand. The stick is hollow and fits the Lyman 4500 sizer/lubricator, but is also interchangeable with RCBS and other brands.