This patented design quickly became the benchmark for straight-line bullet seaters, effectively eliminating the concentricity issues that have long plagued other dies of this type. By incorporating the floating seating stem system, the design allows for tighter manufacturing tolerances, ensuring exceptional precision. The fit between the bullet guide and seating stem is so precise that the stem can actually be demonstrated to "float" on a column of air, guaranteeing flawless alignment. The seating stem is precision ground to perfectly match the bullet diameter, contributing to superior accuracy. To further enhance performance, the cartridge case and bullet are fully supported and aligned within a close-fitting, precision-ground sleeve before seating begins, ensuring perfect alignment and consistent seating. The micrometer is calibrated in .001 inches increments, offering precise and infinitely adjustable seating depth. Additionally, the micrometer includes a convenient feature that lets you re-set it to your preferred seating depth, allowing for consistent, repeatable results every time.