The Redding 6mm GT Seating Die is specifically designed for bottleneck cases. This standard seating die features a built-in bullet guide, a crimp ring for roll crimping, and comes with the proper seating plug for accurate bullet alignment.Key FeaturesBullet Guide: Includes a built-in bullet guide for improved alignment during seating.Crimp Ring: Features a roll crimp function to secure the bullet in place.Seating Plug: Comes with the proper seating plug tailored for the 6mm GT cartridge.Note: Shell holder sold separately; Shell Holder #1 is recommended.