The Ultra Micrometer Seater Die is a non-crimping seater die (with the exception of the 30-30) that ensures perfect alignment of the bullet and case during the seating process. This die press-fits the bullet into the case with exceptional precision, maintaining optimal alignment for consistent seating depth. A convenient micrometer allows for exact adjustment of the bullet seating depth, enabling you to tailor the length of your cartridges to your exact specifications. Once you've seated your bullet close to the desired depth and measured it, simply adjust the micrometer stem up or down to fine-tune the depth, ensuring each round is seated to the exact length you need.