How could the guy possibly know it was a Speer bullet? None of my bullets have the manufacturer's name stamped on them.
But, it is Portland. Those liberals are psycho. As in, burning down housing developments and SUV dealerships. Driving steel spikes in trees flagged for logging so as to destroy the chain saw and harm the logger. That kind of mean.
The kind of people to stuff dynamite in a cartridge and surreptitiously put it in a box of ammo.
(I made that last one up.)
I wouldn't put anything past those people.
Good question.