I think i can safely assume that mule deer was taken out west somewhere, where the terrain is a bit more open, however the area i hunt here in WI is much more dense, so much so that if a deer takes off aftera lethal hit and makes it 100+ yards, it could easily be in some really thick, nasty cover, where trailing without a blood trail is very difficult. It looks like the doe in the picture was hit a bit high as well, perhaps that's why she didnt bleed, just like mine. did you notice if the chest cavity was full of blood when you field dressed her? The ammo i've been using has been getting the job done thus far, i just think i owe it to the animals to try and recover wounded quarry 100% of the time, and a more distinct blood trail would really help.