Last year my brother shot a deer with his muzzeloader, a 100gr charge with a 300gr XTP in a sabot. My brother and i looked for 2 hours after waiting 1 hour for her to die, then my brother left for the purdue football game, and then he was going to return later. i spent the next 5 hours looking in the general direction that the deer went. there was no blood trail at all. not even at the impact point. there was no exit wound and the strange thing was no blood came out of this deer at all, no blood on the deers fur at all, just a perfect entrance wound and the bullet stopped against the rib cage on the other side.
well any way i found the deer in a creek about 300-400 yards from where she was shot. you have to stick with it a long time. try looking at natural boundaries that a wounded deer cant get thru, in my case it could get a steep 8' bank on the other side of the creek

propmahn
you can never have too many guns