Chouinard Fan, although being an infantry/logistics grunt, clued me in on the Abram’s sabot dart. http://www.pica.army.mil/PicatinnyPublic/products_services/products12.asp
I like this page because it has a drawing of the dart coming out of the container/package (sorry, I don’t know the name). CF says that in the first Gulf War, the US tankers decided using their normal ammo was a waste, and went back to the shaped charges that had preceeded the kinetic energy darts. The darts were (so I hear) exiting the other side of the Iraqi tanks.
From the following story, you can see that even the 1991 era Abrams whaled on the 1970s era tanks Iraq had. Putting them into WWII is like putting the high school varsity back into elementary school.
From http://www.iacenter.org/depleted/fahey.htm: (excerpt)
During the ground war, only seven M1A1’s were hit by rounds fired from the Iraqi’s T-72 tanks, with none being seriously damaged. The Army reported that the Iraqi armed forces “destroyed no Abrams tanks during the Persian Gulf War.” Nine Abrams tanks were destroyed during the war: seven due to friendly fire and two were intentionally destroyed to prevent capture after they became disabled. One incident in particular demonstrates the effectiveness of armor-piercing rounds and tank armor made of depleted uranium. As allied forces pushed into southern Iraq at the start of the ground war, an M1A1 tank became stuck in the mud.
The unit (part of the 24th Infantry Division) had gone on, leaving this tank to wait for a recovery vehicle. Three T-72's appeared and attacked. The first fired from under 1,000 meters, scoring a hit with a shaped-charge (high explosive) round on the M1A1's frontal armor. The hit did no damage. The M1A1 fired a 120mm armor-piercing (DU) round that penetrated the T-72 turret, causing an explosion that blew the turret into the air. The second T-72 fired another shaped-charge round, hit the frontal armor, and did no damage. The T-72 turned to run, and took a 120mm round in the engine compartment (which) blew the engine into the air. The last T-72 fired a solid shot (sabot) round from 400 meters. This left a groove in the M1A1's frontal armor and bounced off. The T-72 then backed up behind a sand berm and was completely concealed from view. The M1A1 depressed its gun and put a (DU) sabot round through the berm, into the T-72, causing an explosion.