The RCBS 22-250 Remington Neck Sizer Die Set is specifically designed for bottleneck cases to be fired in bolt-action rifles only providing precision reloading for the popular 22-250 Remington caliber.RCBS 22-250 Remington Neck Sizer Die Set2-die set includes Neck Sizer Die with Expander-Decapping Unit and Seater Die with Bullet Seater PlugNeck Sizer Die resizes the neck only (doesn't touch shoulder or body) and deprimesSeater Die features built-in roll crimper to secure bullet while seatingNon-carbide constructionDimensions: 1.75 x 4.60 x 6.10 inchesIdeal for precision reloaders working with 22-250 Remington ammunition in bolt-action rifle applications ensuring consistent neck tension and proper bullet seating with crimping capability.