The Hornady Custom Grade New Dimension Seater Die is a great die for the avid reloader. The Seater Die will improve your bullet seating and accuracy with its floating bullet alignment sleeve and stem. The floating sleeve is designed to align the bullet and case prior to seating preventing any deformations on the base of the bullet. For the ultimate accuracy and precision you can add the Hornady Microjust Seating Stem (sold separately #394708) to create your own Micrometer Seating Die! The CGND Seater Die is also compatible with popular bullets like the A-Max and FTX bullet lines with the addition of the appropriate Hornady Die Seater Stem (sold separately). Shellholder sold separately.