The Ultimate Cartridge Check System precisely checks primer seating depth. Primers in reloaded ammunition should be seated flush or below flush, never protruding. This is critical for semi-auto firearms and important for accuracy in all to get consistent ignition. No one wants to close the bolt and be greeted with BOOM! Examine a primer before seating, notice the anvil is not fully seated.
When priming a case it’s best to seat it firmly all the way to the bottom of the pocket. By doing this you seat the anvil and sensitizes it. Precision reloaders uniform the primer pocket making all the exact same depth and removing the minute radius in the bottom corner, numerous tools are available for this. The Ultimate Cartridge Check System provides precision for checking primer seating depth
Tom Wilson ©