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No. it means the primer is crimped (as opposed to boxer priming) Most .mil brass is berdan primed. Harder to reload - but it can be done. Check out Dillon Precision for the berdan primer remover.
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Berdan primed has nothing to do with crimped or not.
Berdan and Boxer are the two major types of priming, Boxer is more common with American ammo, has the one flash hole in the center. Berdan is more common with foreign countries and has two small flash holes which makes it more difficult to reload. Not impossible but not as convenient as Boxer style.
Both primer types can be corrosive as well, primer type is not an indicator of corrosive or non corrosive.
Crimped primers can be Boxer or Berdan, just a common technique on military ammo to keep the primer from blowing back and causing problems.