I've shot several deer with the 250gr bonded shockwave. Most I had excellent results with, nice big holes out the opposite side and great blood trails. I have had a couple deer that were hard to find. Little hole in and little hole out with very little blood. A couple I didn't find, may be due to poor shots on my part. Since i didn't find them i cant say. They are a very accurate bullet. I still use them in my tc bone collector with a 100grs of T7 loose. Dont have a clue why some perform excellent and some are mediocre.