Dial in exact seating depth with confidence. The ultra micrometer seater die keeps the bullet and case precisely aligned and uses a non-crimping design, except for the .30-30 Cal. With its micrometer stem, you can make accurate, fine-tuned depth adjustments with ease. Incorporates all the well-known features of the original bench rest seater die for straight-line seating, along with an ultra-precise micrometer for adjusting bullet seating depth The micrometer facilitates precise bidirectional adjustments, offering seamless calibration to an accuracy of 0.0005 inches Graduations at increments of 0.001 are clearly marked Reduces the trial and error previously associated with achieving precise round seating The micrometer features bright, white markings that enhance readability