AnsonRogers,
When I first started using the Sierra 85gr HPBT, probably back in the 70's, it was classified as a varmint bullet. The deer I hit with it usually went down very quickly, but usually there was no exit. However, I believe Sierra upgraded the bullet somewhere along the line, gave it a heavier jacket, and started calling it a Gameking bullet. Sierra now says that the HP "Gameking" hunting bullets penetrate better than a similar weight Spitzer or plastic tip bullets. Now a days, the bullet still destroys the deer insides and now usually exits. As far as a blood trail goes, sometime yes and sometimes not very much ... but it usually doesn't matter because the deer usually don't go very far after being hit .. if at all ... of course that's provided you hit them where you are supposed to. Ben