I agree on the head shots. I always pass up the shot if its not there. I took a snowshoe hare a couple years ago with a .45-70 loaded with a 405 gr JSP over a healthy dose of H4198. I put the crosshairs on his eye at about 10 yards. It removed the head completely and did no harm to the body. It provided dinner that night plus a hide and rear feet for fly tying.

Experience is the best teacher, hunger good sauce.
Osborne Russell Journal of a Trapper