Years ago I was a diehard hard-cast guy out of my Ruger SBH .44. Never recovered a single bullet as they were all pass theoughs. However, even heart/lung hit animals seem to always lead me on really long and sparse blood trails. Eventually, I didn't recover a perfectly hit deer until the next morning and lost the meat. That was the straw that broke the camels back for me and I switched to expanding bullets and upped my speed.

I'm not saying cast is bad. I'm not saying they don't have their place. Just relaying my experience.

I'm now, however, firmly in the heavy/fast/expanding camp unless circumstances don't allow it for some reason.