Heres 2 recovered powerbelts from my range. These were recovered after i shot 3 rounds. 225 grain powerbelt aerotips driven by 70 grains pyrodex P @ 58 yards. These bullets hit inside my rock cave that i shoot into. As you can see, When shooting a lower charge, these bullets mushroom like they should and will do an excellent job on game.

This one lost some weight, But common! It hit solid stone with no give to it! Both of these recovered bullets were the size of quarters.

Unfired powerbelt. Take notice to picture 1 and the unused powerbelt and look at the #'s on the scale.