*** THESE BUSHINGS ARE PROPRIETARY TO SHORT ACTION CUSTOMS MODULAR SIZING DIES ONLY!  THEY WILL NOT WORK WITH ANY OTHER DIE *** THESE BUSHINGS ARE INTENDED FOR DASHER CHAMBERS CUT WITH THE ALPHA MUNITIONS LEGACY REAMER. Our “Neck / Shoulder Bushings” are precision machined and matched to size the Shoulder / Body Radius, Shoulder, Neck / Shoulder Junction and the Neck of your cartridge. Matches Alpha Munitions Legacy reamer specs of a .075- neck / shoulder radius and .0300 body / shoulder Radius These bushings do not feature our traditional tapered design similar to other cartridges.  Reason being is to ensure appropriate neck tension throughout the neck of the case. Made from 17-4 H1150 Stainless steel then nitrided to ensure great lubricity Made in the USA