RCBS 2-Die Set 450-400 Nitro Express 3"The Safari Series Die Sets were selected from the most effective and time proven Calibers for dangerous African Game. These are the same high quality dies that RCBS has been producing in their Special Order Shop for years and feature a lifetime guarantee from RCBS. 2 Die Sets include a Full Length Sizer Die (which features an expander decapping unit to remover the spent primer while expanding the case mouth) and Seater Die (which includes a bullet