I go old school with Thunderheads. However, the most impressive broadhead performance I've ever seen was a 3-blade muzzy in WY in 1993. My buddy took a 40 yard shot at a 4x5 bull standing broadside behind a big lodgepole pine. Shot looked awesome, until the arrow hit a small branch at the front end of the trees canopy at the top of its arc, and deflected back behind the trunk. Bull was obviously hit, and had trouble using his left rear leg. He holed up in a patch of timber, we gave him 6 hours and went in, my buddy uphill and me downhill.
We found him dead. As we dressed and quartered him for packing, we discovered that the arrow had hit square on the hip joint, shattering the head of the femur, and punching through the left hip socket and penetrating into the abdomen. The broadhead was in the abdominal wall just ahead of the penis sheath. It has punched through 3-4" of hard, solid bones, after we washed it up it looked like it was brand new out of the package.
