RE: BTHP for hunting?
The key to hunting with hp bullets is not shoot them too fast. I shoot the hornady hp match in .308 at around 2550 fps and have had good luck hunting. I tried the hp in my 6mm loaded fast and I found the jacket in the hide. Just the lead core penetrated. Deer was just as dead but still I didn't like the way the bullet worked.
I have loaded hp in a 22-250 that came apart 20 yds from the barrel. They literaly went up in a cloud of grey.
After saying all that I would stay with a good hunting bullet to be safe. I prefer hornady......mostly cause they are usually cheaper.