RCBS offers a variety of decapping pins for all reloading needs. Headed pins are for most current production expander-decapping and decapping rods. Small pins are for pre-1990s collet-style rods designed for small-primer cartridges as well as for current competition-style dies/rods X Die mandrels PPC and .357 Sig. Large pins are designed for collet-style rods for large primer cartridges as well as for current competition-style dies/rods 7 TCU and 35 Whelen. Straight-styles are meant for use with .50 BMG .416 Barrett and .460 Steyr.