EP>(clip)
EP>VH>When I was in the Army, I was tasked to evaluate adopting "teflon
EP>VH>coated" ammo to penetrate enemy soft armor.  I got two reports -- one
EP>VH>from the Justice Department, and the other from the Treasury Department
EP>VH>-- on teflon coated ammo.  They concluded teflon ammo does NOT enhance
EP>VH>the ability to penetrate a vest.
EP>        Vern, the only bullet I am personally aware of that was teflon
EP>        coated used the teflon ONLY to protect the bullet from damage
EP>        during handling. The bullet it'self did all the work; the
EP>        teflon did nothing for penetration. Is this the one of which you
EP>        are speaking? Ernie P.
That's the one -- the teflon is only there to protect the bore (they
ruined some nice revolvers in early testing, and finally settled on
teflon as the cure.)  If you'll recall, the press and the antis in
Congess were calling it a "cop killer bullet" and trumpeting how it
would penetrate police vests.
The bottom line is, bullet material does not influence the ability to
penetrate a kevlar vest.  The key to penetrating kevlar is velocity.
As I said -- if you get a marshmallow moving fast enough, it'll go
through an M1 tank.
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