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 guarantees flawless bullet seating with optimal consistency and accuracy. A convenient micrometer allows you to fine-tune the bullet seating depth to your exact specifications. After seating the bullet close to the desired depth and measuring it, simply adjust the micrometer stem up or down to reach the exact depth you need. This ensures each cartridge is seated to the perfect length for reliable and precise performance.