Military Cases and Crimped Primer Pockets
The only special treatment military cases require is after they have been deprimed. There is a crimp around the primer pocket, designed to hold the primer in place. This must be removed to re-prime the case.
We have an inexpensive chamfer tool in the case conditioning tools page, catalog #90109, that will do the job, and can be power-driven with an attachment designed for the Dremel Moto-tool.