Abstract: Various commercially available ammunition case sizing die assemblies consist of a die base and a subassembly which is threadedly installed in the die base. The subject adaptor assembly is configured to be installed in the sizing die assembly die base. As a result, a case sizing die assembly can be converted to a bullet seating die assembly by removing the subassembly of the case sizing die assembly and installing the subject adaptor assembly in its place. The subject adaptor assembly is made up of a rod and a lock ring. The rod has a knurled knob at one end, a cylindrical portion at the other and a threaded portion between. The lock ring threads onto the threaded portion and has a set screw in it to lock the lock ring in desired positions. The cylindrical end has a cavity in it in which the bullet is held during seating of the bullet.

Abstract: An ammunition cartridge case reforming die to be used in reloading operations having a central bore defining the external configuration to which the outer surface of the cartridge case is to be reformed. A mandrel having an outer surface of a configuration to which the inner diameter of the cartridge case neck is to be formed is mounted co-axially in the bore. A stop element adjacent the mandrel has a stop surface which extends radially outwardly from the mandrel toward the bore inner wall. The stop surface is positioned and angled such that it will limit the lengthwise growth of the case neck during resizing and also produce a chamfer on the inner mouth surface of the case neck.