Update
my #1 LGS (TopGuns in Terre Haute) has a big amount of 5.56
in 62 grain M855 green tip Armor Piercing Ammo. Retail is about
$.45 per round before tax. I have a good bit of this. It is Lake City!
I've always classified it as Light Armor Piercing and keep it separate from my other 5.56. I don't want to take a chance of damaging any of my steel targets with it.