judgedelta,
Minor misunderstanding here, but I see this one a lot; LC military brass is no different than most any commercial (civilian) brass on the market, and does not need to have loads reduced from data using, say, Winchester brass. This applies strictly to the 5.56mm stuff. The 7.62x51mm (308 Win) and older GI surplus 30/06 brass definitely WAS thicker, had less capacity, and will need to have charges reduced compared to loads developed with commercial/civilian cases. I think the warnings about this were so pervasive in so many sources for loading data that everyone just assumes that the same warning will apply to the 5.56mm cases, and it does not.