The ZERO Modular Shellholder System offers increased consistency and repeatability in sizing by ensuring contact between the shellholder and the die.
The system includes six precision ground stainless steel inserts for adjusting shoulder bump in .002" increments.
The kit comes with a base for either ZERO or traditional presses, three shellholder/extractor tops for 223, 308, and Standard Magnum cartridges, and an aluminum storage block.