Forster Datum Dial Ammunition Measurement System Blank Dial

  • Product #: 332646
  • Forster #: DD7777
  • UPC #: 757253992506
Forster Datum Dial Ammunition Measurement System Blank Dial
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Only 1 in stock - order soon!
Ships tomorrow from MidwayUSA

Product Overview

The Forster Datum Dial Ammunition Measurement System gives you the data you need to refine your case sizing operations. The Datum Dial provides a relative measurement between the base of a case to a datum point on its shoulder angle. It may be used before sizing operations to find the optimal headspace for your firearm. After sizing operations, use the Datum Dial to check the setup and consistency of your reloading process. When used in conjunction with the Datum Dial (DD1010) the tool measures the relative distance of a bullet or cartridge to a point on the bullet’s ogive. This dial allows you to custom-drill holes for diameters not covered by the black Case Dial or the two gold Bullet/Cartridge Dials in Forster’s Ammunition Measurement System. The blank has 5 starter holes.



  • Better accuracy because your ammunition’s headspace is tailored to your firearms’ chamber
  • Safer shooting because excessive headspace, which may lead to dangerous case separation, can be avoided
  • Quick sorting of batches of cases, bullets and cartridges to effectively remove variation to provide relative consistency
  • More possible reloads because of reduced work hardening of brass

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Delivery Information

Must Ship to FFL Dealer
Shipping Weight
Ships Alone
DOT- Regulated
Carrier Restrictions
  • Cannot ship via air
  • Cannot ship via USPS
  • Cannot ship to PO Box
  • Must ship to Contiguous US
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