Forster - Datum Dial Comparator Insert complete with a comfortable ball

complete with a comfortable ball fitting on the end that makes it easier to grip

With a flat trajectory and improved wind performance

Electronic Interference Shield Resists Interference from Cell Phones

060”) flash holes

Forster - Datum Dial Comparator Insert complete with a comfortable ballEasy to use ammo measurement system gives you the data you need to refine your case sizing operations.(A caliper is required.) Provides a relative measurement between the base of a case to a datum point on its shoulder angle. May be used: Before sizing operations to find the optimal headspace for your firearm After sizing operations to check the setup and consistency of your reloading process Cartridges available separately. Also sold is the Datum