Lee Seater Dies are built to last a lifetime and are great at producing factory like ammunition. Lee Precision has been manufacturing high quality, affordable reloading equipment since 1958. The Lee Seater die is no exception. Lee Seater Dies for pistol cartridges feature two crimp shoulders. The first shoulder applies a slight taper crimp and the second shoulder applies a full roll crimp. The closer the die is adjusted to the shell holder the heavier the crimp will be. For Bottleneck rifle cartridges, the Lee Seater Die is an easy adjust dead length bullet seating die. This die does not crimp and will require the factory crimp die.