This may be be old news to some, but I had not encountered it before.
There is so much junk out there now you need to triple check what you pick up.
When picking up range brass (yes I still do, can't stop) I have always ran a large magnet over the pile to pull out metal, staples, and other unwanted stuff.
So I pulled out some 9mm "brass" Headstamp FM 9mm Luger.
Seems it is is Freedom Munitions. Looks just like brass, but is actually steel with a brass plating!
Sold as American Steel.
https://www.freedommunitions.com/ammunition/pistol/9mm/9mm-luger-115-gr-rn-steel-new.html
There is so much junk out there now you need to triple check what you pick up.
When picking up range brass (yes I still do, can't stop) I have always ran a large magnet over the pile to pull out metal, staples, and other unwanted stuff.
So I pulled out some 9mm "brass" Headstamp FM 9mm Luger.
Seems it is is Freedom Munitions. Looks just like brass, but is actually steel with a brass plating!
Sold as American Steel.
https://www.freedommunitions.com/ammunition/pistol/9mm/9mm-luger-115-gr-rn-steel-new.html