I' ve heard nothing but similar reports about the greek crap.

I would just pull the bullets, put in some new powder and reseat the bullets and use as plinking loads. My other suggestion is more labor intensive and I' m not sure if its worth your time- take the empty cases to a safe location and fire off the primers in your rifle, then decap and reprime and start over. In fact before repriming, I would resize the cases also, I' ve heard of some of these rounds not fitting in chambers also.[:@]