Custom-Grade rifle dies begin as specially selected steel that's hand-inspected both before and after it's delivered. The steel is then heat-treated to ensure the durability needed to provide a lifetime of reloading. Then the inside surface of each sizing die is carefully hand-polished to a mirror finish. The result is a die so smooth, guaranteed to never scratch a case. Before assembly, every part of every die is hand-inspected and a protective coating is applied to prevent moisture damage during shipping. The result is the most advanced reloading die set available today. <br /> <br />Elliptical Expander significantly reduces the friction and case-neck stretch associated with other expanders. It threads on so it can't pull loose and eliminates the need for a separate expander die for &quot;necking up&quot; to the next larger caliber. Sliding, In-Line Seating System assures in-line benchrest alignment of every bullet seated. The sliding sleeve vertically pre-aligns the bullet with the case-neck