I have some fed. Gold metal match that I pulled and I have american eagle, and some federal hunting hunting rounds I pulled from wal mart, all .308. All the brass appears to be exactly the same. All the head stamps are the same. Anybody have diff. info? Hornady match brass says "match" on the headstamp. So maybe all federal brass is the same? Just wondered because I got it all mixed up so I dont know which is which now. How important is brass consistency really? If its all the same headstamp, and trimmed the same length??