Who has experience With this stuff? As it says 5.56 NATO green tip, is it actually legit 5.56 XM855? it doesn't say XM855 on the box so i wonder if they just paint some regular 5.56 green. It also does not have the NATO stamp on the rim. it has PSD 1 4 stamped. That would suck if it didn't have the steel penetration tip but not a bad price for brass cased ammo anyway.