I've taken 3 deer with them, 2 does and 1 buck. I hit the first doe high but she still went down within 10 seconds. I took out 1 lung and the heart on the 2nd, and she also went down very quickly. I hit the buck in the spine and he dropped but had to put another one behind his shoulder to finish him. I also shot a rabbit with one. I am impressed because they have all opened when it hit the target, including the rabbit <img src=icon_smile_big.gif border=0 align=middle> There wasn't much blood when I shot the 1st doe and the buck, but I believe it was because I hit high. There was a lot of blood where I shot the other doe but then it stopped, but she didn't go far and started bleeding again after a little distance. Just depends on the deer and the shot. I have had good luck with these broadheads and will continue to shoot them. Good luck