and confirming what I suspected.

The gun shop owners and the CCW instructor (in Florida) I asked about this were unaware of the situation, they also thought it was some sort of proof-firing test result provided by S&W and other manufacturers. I've gotten proof targets, demonstrating multi-round groupings, included with a few guns I've purchased over the years, mostly Sigs, but never the spent case in a sealed envelope thing.

I suppose this will now prompt criminals to use revolvers instead of semi-autos when they gun someone down.