I traded with friend for some .44 brass. I took the lot and cleaned them in a mild citric acid solution. I then dried them in the sun and finished them off in the tumbler.
As I was pulling them from the tumbler, I found ten pieces that were primed.
I set those 10 aside and tried to fire them off. To my surprise, 9 out 10 fired!
I have a new respect for primers!