AR Rifles
I ordered some ammo the other day and recieved it today. Here is the link http://buygunsandammo.com/product/5-56-62gr-fmj-ss109-penetrator-sealed-brass-case/
The ammo looks good but I didn't recognize the headstamp. It says "5.56 SADU 13". I checked cartrdgecollectors.org but it wasn't listed...