I suppose I have been lucky... Never had to track a deer when shot with a .222 or 22-250. They are dead at the shot.\ Killed my buck this year with a .243 youth model Remington. Shot Barnes 85 grain STX bullet ahead of Hodgdon Varget powder. I have the bullet from that deer. Opened to .40 cal size in perfect four sided star, retained 100% of weight, broke rib going into deer, exploded heart and lungs,broke another rib and stuck under the skin on the outgoing side. This knock down power from a bullet this size is unbelieveable. I have seen many test of this bullet and all have proven it to be fantastic. This deer did move, 3 yards... Shot was 110 yards, off hand. Deer weighed over 200 lbs. 8 pts.