An aweful lot will depend on the hit. If you hit them good with any quality head, they won't go far. That said, my favorite head for whitetail is either a 4 bladed 145 grain muzzy, or a five bladed 135, or 145 grain Innerloc. But my best bloodtrail ever was with a buck blaster. I don't use them anymore however, because I can not afford to practice enough with them. they are also somewhat lacking in penetration.