Redding 300 Winchester Mag Competition Bushing Neck Die

300 Winchester Mag Competition Bushing Neck Die by REDDING RELOADING PRODUCTS Similiar in design to Redding's Competition Seating Die and the cartridge case is completely supported and aligned with the sizing bushing before the sizing process begins. Bushings not included. The easiest way to determine the proper diameter bushing is to measure the neck diameter of several loaded or dummy cartirdges with an accurate micrometer. Subtract .001- .002" from the smallest average neck diamter and this diameter bushing will generally size case necks to create the 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.