Jim243 asks:
Quote:
... if you know of a place that carries 5.56 dies, please let me know.
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Is your intension to size a fired case so it's headspace is at military specs?
You can full length size cases from either .223 Rem. or 5.56 NATO chambers with a .223 Rem. full length sizing die. They are adjustable in the press to set fired case shoulders to any dimension from the case head that's within military specs. I don't think the body diameters having to be the same is important; if they are then use a small base full length sizing die.