To lubricate bullets using hard lubricants, the RCBS Bullet Lube for Lube-A-Matic Sizer/Lubricator is ideal. When it comes to quality ammunition reloading equipment for pistols and rifles, one of the leading manufacturers is RCBS. With this particular sizer/lubricator, bullets are sized and lubricated in a single step.This sizer/lubricator is designed with a hardened interior that ensures correct alignment for precision cylindrical shape. In addition, the product crimps the gas check found on the base of bullets with the gas check style. In addition, it fits various diameters, including 26, 244, 309, 310, 311, and 364, among others.