Redding 300 Remington Ultra Mag Competition Bushing Neck Die Set

300 Remington Ultra Mag Competition Bushing Neck Die Set by REDDING RELOADING PRODUCTS Redding Competition Bushing Neck Die Set contains the following dies: Competition Bushing Neck Sizing Die Body Die Competition Seating Die Bushings not included. The easiest way to determine the proper diameter bushing is to measure the neck diameter of several loaded or dummy cartridges with an accurate micrometer. (These dummy cartridges can be loaded with your old set of dies or a borrowed set.) Then and simply subtract 0.001" from the cartridge that had the smallest average measurement. This will allow for a slight amount of spring back and create a proper press fit for the bullet. *Please note* All defective returns must be made through Redding directly. You can visit their website by Clicking Here or call them at (607) 753-3331.