Easy to use Ammo measurement system gives you the data you need to refine your case sizing and bullet seating operations. This complete kit includes one Datum Dial tool for checking cartridge cases, Both bullet/Cartridge dials for use with 17 cal, 204, 224, 243, 257, 264, 277, 284, 308, and 338 bullets, laminated chart showing common datum diameters, instructions and storage box. (caliper is required)
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