This is the second edit of this video because the first was removed by YouTube for being too graphic.
This is a video of me comparing the impacts of a cal pellet vs a cal pellet. Rifles used are my Hatsan AT44 QE cal and my Hatsan BT65 SB cal. Pellets used are H&N Baracuda Hunter hollow point pellets for both rifles in their respective calibers. The is running at an average of 900 FPS and the is running at an average of 917 FPS. This is not a scientific test so please do not read too much into it. It was Saturday and I was in the backyard... Your results may vary.