Lyman .312 Diameter H&I Sizing Die
Proper bullet diameter is essential for cast bullet accuracy. Lyman improved sizing dies now have 90 hole spacing for easier bullet lubrication, even with today's hard lubricants. Lyman sizing dies also feature a tapered mouth and hardened interior insuring alignment for perfect cylindrical shape. Interior dimensions correspond to suggested diameters for all popular rifle and pistol calibers. These are interchangeable with RCBS.
Specifications and Features:
For use with 4500 Sizer-Lubricator
Sizes cast bullets to exact size with swaging action
Size must correspond to the groove diameter of your rifle or pistol