I have shot several deer with my inline muzzy over the last two seasons all with similar results. The deer runs several hundred yards and looses very little blood. The shots have all been lung shots with an entrance, but no exit. The damage inside the animal is substantial, but the lack of a blood trail is a big issue for me. I am shooting a 250 grain copper bullet with 120 grains of pellet. One of my hunting areas require copper. Any suggestions on what I could do to get a blood trail to follow. Heavier bullet maybe?