I quit shooting the SST's a long time ago, for the same reasons as yall. I had too many whitetails run. Plus, it ruined alot of meat in the impact zones.
However, when I had my old custom target .308, I used to take it deer hunting occasionally. This was all before I started reloading. And I have taken several deer with the Hornady TAP, in the red box (LE ammo), 168 HPBT's. And they have some serious punch! They don't frange bad at all, and they will put a wallop on whatever you shoot.
Granted, the only Hornady bullets I shoot these days are LeverEvolutions for my pistols and lever guns, but I wouldn't completely write them off simply b/c of how sensative and frangible the SST's are... Just my opinion. Also, their Match brass is really good stuff for load development. It's cheap and you don't have to waste shots fired on your good high-dollar brass. That's what I use for load development for my .308. Then once I get a load I really like, I load some up in my Lapua brass.