Picked up 100 rounds of Hornady Critical Defense .30 carbine ammo a couple months ago and took some out today to ensure it feeds through my Saginaw carbine. I also had plenty of LC 72 ball ammo and a couple one-gallon jugs of water.
The jugs of water were both shot at approximately 30 yards, hanging on a chain connected to some sawhorses. I double-tapped with the critical defense ammo, so the jug on the right had two rounds through it. The jug on the left was hit with one round of LC72 ball.
Hardly an exhaustive test, but somewhat telling in the explosive expansion of the Critical Defense ammunition. In fact, the expansion was so severe, it gives me pause. The expansion appears completely uncontrolled. The bullet jackets disintigrated in one gallon of water.
Jug on the left has a normal entry point and the exit is basically an uneven, five-inch vertical cut. The jug on the right was shot twice with Critical Defense ammo and is completely shredded. I will repeat this test shortly in a more controlled "one shot each" manner. Until then, I'm sticking with Prvi soft-points.