Quote:
Originally Posted by Engine49guy
Be aware M855 "green tip" ammo has a tungsten steel core penetrator inside for armor piercing, not recommended for indoor ranges or on steel plate targets.
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The penetrator is made from soft steel; it's not even hardened. Tungsten is a strategic metal that is both expensive and difficult to work. It is roughly twice the weight of steel. It's weight alone would preclude it's use in a .223 bullet. The military would not waste it in a "spray and pray" platform. Lastly, if the penetrator was made from tungsten steel it would meet the legal definition of armor piercing and not be allowed for sale.