Hi
The 5.56 NATO brass I have for sale is BOXER primed. (Single hole when looking into the case) therefore easily reloaded.

If by "wierd primer" you mean you can see 2 holes when looking into the case mouth then it is BERDAN primed.
A total pain to remove & reload.
Most people do not bother trying to reload BERDAN primed cases. They just bin them,
Al.