These separate Bullet/Cartridge dials are to be used with the Forster Datum Dial Ammunition Measurement System. These Bullet/Cartridge dials are used to measure the relative distance of a bullet or loaded cartridge from the base of the bullet/cartridge to the bullets ogive.


Dial #1 can be used with 224 Cal, 243 Cal, 264 Cal, 284 Cal and 308 Caliber Bullets.

Dial #2 can be used with 17 Caliber, 20 Caliber, 25 Caliber, 270 Caliber, 6.8mm, and 338 Caliber Bullets.