I have got to reply again. I just shot my second deer with the 90gr. Muzzy 4 blade and she did not go but 60-70 yards. I did not realize she was a little quartered towards me and I went in perfect and caught one lung but I came out right in front of the back hip on the other side and she still went down that quick. I shot one 2 years ago similar to that with a mechanical broadhead and she went 250-300 yards but I did recover her. I think the Muzzy's are awesome. I will be switching my son to them by next year, he was using Steelforce but he hit the spine last week and the broadhead just fell apart.