Lee Precision Micrometer Full Length Die Set Features The Lee Precision Micrometer Full Length Die Set pairs a full length sizing die with a micrometer seater die to cover the complete resizing and seating process for .300 Weatherby Magnum brass. The sizing die returns cases to SAAMI factory spec which keeps chambering smooth and consistent across a hunting season of reloads. The seater die s floating bullet guide holds the bullet in alignment through the seating stroke reducing runout and improving the concentricity of finished rounds. Its laser engraved micrometer thimble allows infinitely adjustable seating depth control letting handloaders dial in loads for a specific rifle s throat and magazine length. The set includes a shell holder custom fitted for the .300 Weatherby Magnum along with a powder funnel and basic load data to help new reloaders get started safely. Because the body contacts the shell holder directly rather than relying on case shoulder contact alone seating depth stays uniform from round to round. This consistency matters for a large magnum cartridge like the .300 Weatherby where pressure and velocity variation can be more pronounced than with smaller rounds. Hunters and long range shooters loading their own .300 Weatherby Magnum ammunition will find this set a dependable foundation for building accurate repeatable handloads. Lee Precision Micrometer Full Length Die Set Specifications Manufacturer: Lee Precision Model: Micrometer Full Length Die Set Caliber: .300 WBY Reloading Diameter: .308 Die Type: 2-Die Set Available At: GrabAGun