Hornady New Dimension I Two-Die Set combines an innovative sizing die with a seater die featuring an enhanced design that makes resizing cartridges easier and smoother than ever before. The two 270 Winchester caliber dies in this two-die set include a zip spindle design that eliminates spindle slippage, and a smooth finish that delivers reliable functioning without case sticking or excessive friction. The Zip spindle design on the Hornady New Dimension I .270 Winchester Two-Die Set provides the "solid lock" needed for life from these Hornady High Performance Dies. This two-piece set of gunsmith and reloading equipment includes one size die and one seater die, both of which are built with the exclusive Hornady Sure-Lock ring design, the elliptical expander reduces friction and case neck stretch, the retainer ring eliminates case sticking and case neck stretch, and the seater adjustment screw easily adjusts for bullet seating depths. These Hornady dies also have a built-in crimper, and the retainer ring has wrench flats. Hornady New Dimension I Two Die Sets for Rifle Calibers feature a lifetime guarantee. New Dimension dies are cast from solid steel, just like the original Hornady bullets, not cast. Like most reloading dies, New Dimension dies are made in specialized factories.