Charley- they can make the cases as idiot proof as possible, but we all know that the world will soon enough come up with a bigger idiot to defeat it.
The anvil built into the casings probably could be peened back out with a punch and some patience.
If the Blazer primer is larger than a standard berdan, one could carefully patch an undersized primer with paper or perhaps strips cut from a beer can. If the primer they use is smaller than the standard berdan, one could drill out the primer pockets to make the new primers fit.
If I could borrow someone else's gun to try the loads out in, I'm betting that I could make some reloads that will fire.
Fortunately, this idiot doesn't have enough time on his hands to screw around with something like that when I have a bucket of real brass to work with[:-]