[CurlyDave]

"It is commonly referred to as “Green Tip” because the military puts a bit of green paint on the tip of the bullet to help soldiers easily identify it."

...Identify it - as what?

Don't get you knickers in a twist over it. The green tip distinguishes the M855 bullet from the M193 bullet. Once assembled into a cartridge, the two types of bullet are very difficult to distinguish from each other without the paint.

[mad_as_he$$]

http://www.inetres.com/gp/military/infantry/rifle/556mm_ammo.html