The Forster 8.6mm Blackout Ultra Micrometer Bullet Seater Die is a precision non-crimping seater die that holds bullets and cases in perfect alignment during press-fit seating. Features an ultra-accurate micrometer for precise bullet seating depth control.Forster 8.6mm Blackout Ultra Micrometer Bullet Seater DieNon-crimping style seater die for optimal alignmentUltra-accurate micrometer adjustable to 0.0005" incrementsClearly marked gradations at 0.001" intervalsBright white markings for easy readingEliminates trial and error in seating accurate roundsIncludes all straight line seating features of Bench Rest Seater DiePerfect for precision reloaders seeking consistent accurate cartridge overall length for 8.6mm Blackout ammunition. The micrometer system allows fine-tuning in either direction for exact specifications.