Federal Ammunition has produced a video comparing four hunting bullets, the Nosler Ballistic Tip, Sierra GameKing, Barnes Triple-Shock X-Bullet and Trophy Bonded Tip Bullet. They captured the impacts of the bullets a variety of ballistic gels using a high speed camera. The video is somewhat drawn out and could be half as long, but is interesting nonetheless. The testing begins at 4:40 minutes into the video.
Hunting bullet performance comparison