If they are military brass, I.e. LC (Lake City), it's very good brass. However, the primer cups are crimped, as is the bullet/case neck. You can gently ream the case neck to remove any burrs and the extreme crimp. Just be careful to not shorten the necks beyond proper OAL. The primer cups will need to be swaged to remove the crimp or your primers will not seat properly. RCBS has an inexpensive primer cup swage die that is made for military brass (available at Midway, Cheaper than Dirt, etc.), and will do both large (30-06/M2, and 7.62X51), and small (5.56mm).
"I was home... What happened? What the Hell Happened?" - MM1 Jacob Holman, USS San Pablo