I have taken two deer with other than a boiler room shot out of about 40. Both times it was a if it doesn't happen now it isn't going to happen situation and I had a good solid rest both times and I knew where my gun would shoot. One in the neck with my 45-70, which completeyl severed the carotid and windpipe, looked like somone opened a firehose filled with blood and the other was a doe laying down, chewing its cud I saw because of an ear flicker, last day of the season and late in the day. I had a good rest she was cacing away from me and all I could see ws about 6 inches of neck and her head. I put the crosshairs on the back of her head just above the neck, between the ears and when the .308 went off her head went right down. She still had her legs folded under her when I walked up on her. This is not a common thing for me to do but if the conditions are right, I am confident I can do it and not flub it up.