I shot a buck 2 years ago with a 117g sst from my .25-06, and it did a nose dive on the spot. The range was 150-175 yards and the bullet hit the shoulder took out a rib going in, through the lungs, through another rib on it's way out, broke the off shoulder and was under the hide. Bullet weight was about 65g. The entire front end was a bloody mess, but there was no tracking needed.