I shoot on a dry lake bed and the is always a lot of brass (steel and everything else) on the ground out there so naturally I pick it up. When sorting it out, to my untrained eye, the 556/223 all look the same. Is there an easy/quick way to tell the difference? I know I can look up head stamp info online but was hoping someone could give me an easy way to do it. Or!! does it make any difference?
Thanks