1.   And experts in the arms industry said it was improbable that a bullet could both have the strength to pierce armor and then softly fragment.

2.   During the ground war, rounds made from depleted uranium proved incredibly effective in piercing tank armor, the Army found.

3.   Ferguson is still trying to figure out whether atlatl darts pierced Spanish armor.

4.   Rounds made from depleted uranium proved incredibly effective in piercing tank armor.

5.   Schaad was riding in an armored car and was hit by a bullet that pierced the armor.

6.   Some use heat and sound sensors designed to recognize a tank and pierce its armor.

7.   U.S. Attorney Faith S. Hochberg said the five men were shot with Black Talon bullets, which are hollow point and strong enough to pierce armor.

8.   Working with other scientists, Cook refined the shape of both the projectile and the blast it made on impact, enabling it to pierce the armor.

9.   Depleted uranium is a slightly radioactive heavy metal used because of its ability to pierce armor.

10.   Depleted uranium, which has low levels of radioactivity, is used in artillery shells because it is extremely dense and can pierce armor.