I shot a bunch of the Sierra Gamekings last year during the winter when we had 4+ feet of snow on the ground and have since found a bunch of them on the ground. I am not impressed. Most of them had the lead seperate from the jacket and the jacket is just folds of metal. Maybe I am wrong and that is how they are supposed to work? Idunno, for a deer bullet and a good all around getterdun bullet I like the old fashioned Core-Lokt. They aren't as sexy or cute as a Silvertip or Gameking, but in my experience they have always gotten the job done.