If it’s not boxer primed, you can’t reasonably reload it. When I was in the service, military ammo was not boxer primed, if that is still the case, you might as well melt it and make something useful, like more ammo.
This brass is sold solely for the purpose of reloading, for far more than scrap value. It would not sell for more than its scrap value if it were unusable. I have a few thousand pieces of federal headstamped brass not far from me. It is most assuredly usable. It is all boxer primed, with a crimp. As far as I know, 5.56 has always been Boxer primed, with some foreign manufacturers using Berdan primers. The same goes for 7.62x51 of American manufacture.
RCBS sells a decapping tool for Berdan primed cases, it is no more difficult than decapping and removing the crimp on the once fired brass in question here. It is more time consuming as it is a hand tool, but, if I were to get some Berdan primed 5.56 cheap I would invest in the tool and start decapping.
Is that as fun as running boxer through my progressive? No, but you can certainly reload it.