6pcs competition grade increment shell holder set by Derraco Engineering

$95.00

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Description

  1. They are made of 420 stainless steel. They won’t rust like the carbon steel ones from our competitors.
  2. Vacuum kiln heated and air quenched. 300 deg tempered twice for the best combination of hardness and toughness.
  3. The top surface and base surface are CNC milled with one milling cutter to minimize errors from the tooling change. Each shell holder is height checked by gauge, with a plus/minus half thou accuracy.
  4. Designed to SAAMI standards(SAAMI MAX ALLOWED CARTRIDGE BASE AND RIM DIMENSIONS)
  5. The 6pcs set includes one ZERO DATUM piece with the industrial standard of 0.125in height gap. +2,+4,+6,+8,+10 thou increment shell holders.
  6. Why do you want this? What does it do?  They are designed to precisely control the amount of “shoulder bump” (headspace adjustment) during the full-length sizing of cartridge cases.
  7. Provide Precise Headspace Control: They help achieve consistent cartridge headspacing for improved accuracy, allowing you to “walk down” the sizing until the brass perfectly fits your chamber. Yet another tool to minimize or reduce variability.
  8. Available in 5 sizes and their families. 223REM, 308WIN, 7.62*39mm, 300WM, 338LM

Additional information

SELECT CARTRIDGE

223REM, 308WIN, 7.62X39mm, 300WM, 338LM