Please identify ANY commercially produced hollow point/jacket/gilded construction pistol bullet that matches the deep digging potential of a properly created hardcast slug.
Energy transfer? Bah.
Attacking animals lead with their head.
Better have something that does more than ring the bell. It needs to get inside.
Even ball or fmj will increase the drilling potential over a hp. That includes a clogged one.

I've tested quite a few projectiles in various calibers and sabot combos through BP inline rifles where velocities can be pushed well above standard handgun speeds.
The XTP/XTP Mag were poor.
Blown them apart on deer necks. And that is not a tough medium compared to any bear's grill.

Yes, higher speeds cause issues as most jhp's have a velocity window. But slower speeds (handgun) bring their own inherent weaknesses.