RE: good deer bullet?
If you are talking about a 30-06 or 308 I would go with a 165 gr for deer sized game. The 180 gr in these calibers are really intended for elk sized game. Sierra Game King works well on deer. You may have been given some bad info or misunderstood about Sierra. Some people were using the Sierra Match King for deer hunting. The Match King is NOT made for hunting, and it would break up if it hit bones. Sierra warns about this in their literature, and it also use to be on their website.