I noticed the other day that some 9mm got mixed in with my Mak brass from range pickup. I looked at it closer. EEK!
The headstamp said 9mmM! I didn't notice the "M" before. I was looking for 9mm MAK. Damn! I ran for the micrometer to double check my suspicion! Sure enough. Doh! How much of that stuff did I toss into the bushes?