Rather than purchase reloading parts separately, the RCBS Power Punch Decapping Assembly is a more economical option. Made for various calibers and diameters, this decapping assembly boasts an extremely hard and slick expander button, complete with a positioning sleeve for easy adjustment. The button also makes extraction through the case neck easier, which helps prevent problems of stretching but also reduces case trimming. As a result, the case will have longer life, and accuracy is enhanced. For self-centering in the case neck, the assembly also includes the free-floating button design.