M855A1 Performance Review. Did it live up to the Army's hype? Did going green really work?

Touted by the Army as a more accurate and lethal bullet than the older M855 "Green Tip". But is this really true? Did going green with a lead-free design really work? Does it damage M4 carbines? Here I take a deep dive into the performance of M855A1 ammo, based off my time using it in Special Forces and my own accuracy testing.
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