The Ultra Micrometer Seater Die is a non-crimping style seater die (except for the 30-30) that ensures precise alignment of the bullet and case during the press-fit seating process. This die provides optimal accuracy, keeping the bullet and case perfectly aligned for consistent results. The built-in micrometer allows for easy adjustment of the bullet seating depth to your exact specifications. After seating the bullet close to the desired depth, simply measure and adjust the micrometer stem up or down to achieve the exact cartridge length required. This die ensures every round is precisely the length you need for reliable and accurate ammunition.