The M2 Bradley still fires depleted uranium rounds, albeit "little ones" (not like a real tank gun).

But given how close the two vehicles were, the Chaingun was possibly the better choice, and you can see the results. The issue with the chaingun is that you need to be very close before that weapon is effective, because drag on the bullets slows them down dramatically (meanwhile, the tank's bigger gun has more range and power due to the shear size + mass + momentum, so tanks can shoot depleted uranium rounds much further and more effectively). Its just simple physics, the smaller gun and bullets from the M2 puts them at a severe disadvantage in this fight.

This combat footage is exceptionally rare. Not only is it a M2 vs T90 (a fight the M2 was supposed to run away from), its an incredibly rare situation where the chaingun was the right choice to use.

I don't think the M2 Crew were necessarily going for a tank kill. The T90 is theoretically supposed to have armor that protects it from these shots. But even if you can't break the T90's armor, you can damage the main-gun, the treads, the cameras, the sensors, the infrared, and other equipment that's "outside the tank".

I'm sure the big explosion where the M2 Chaingun destroys the whole thing was as much a surprise to the M2 crew as it was to the rest of us (and the internet).

Yeah they downed it with the Bushmaster APFSDS rounds. Took like A LOT of rounds though haha.

Not a kill.