I've spent some time learning how to reload using the m14 platform, and since then have had a chance to test winchester, remington and federal brass.
Before I continue, I want to make this clear, everything I have read on the subject dictates to me that you fire 4 times through your m14 and then crush the brass and never look back. This is to prevent any head seperations and so forth during actual firings. There are tonnes of people out there who shoot their brass a heck of a lot more times then I do, thus your milage may very. I crush my brass at 4 times, some say they get 6, 8 or more firings. This may be all and well, but I wont be firing beside them on the line!
First and foremost, I find winchester brass to be the best (short of laupa and other more expensive brass). The problem is, winchester is not making anymore brass available to handloaders until their military contracts are fullfilled (i've read this on this site, thus i cannot confirm it's 100 percent reliable, but i can no longer find winchester brass myself)
Secondly, I've since sourced remington brass and for the most part, I do not see much difference between it and winchester. During f/l resizing, I seem to notice the brass is a bit more maluable then winchester (thus weaker in my opinion). I also notice the case gets quite a bit more dings after firing presumably from the extraction process as well as landing on concreate/gravel. This furthers my belief their brass is not as hard as winchester. Otherwise, I find remington brass to be an acceptable substitute for winchester for the m14. The shoulders and necks seem to measure out quite good and the neck seems very concentric (circular and in line .. was that the right word?) with the case.
Next, federal brass. Crap .. read: I am not impressed.

I see federal brass collect more dings faster then remington, I have also noted that my extractor; upon pulling the case out of the chamber and flinging it across the range, leaves sections of the rim 'bent' by the extractors sheer force. Sadly, I also see the neck to sometimes not be quite in line with the rest of the case. I have only tested one lot of 50 rounds, thus this may be just a 'one off' bag of crap. But, after this experience, I will gladly pay a few bucks more for remington.
And last and not least, if anyone has any winchestor .308 brass for sale, PM ME PLEASE


