I believe that with the head up, if the animal is standing, a frontal chest shot is possible.
The brain shot is the one usually taken on a charging animal to stop the beast in its tracks I believe. Not an expert, never had that "pleasure" yet.
What is funny though. Note the position of the horns and the brain for a broadside shot. I have heard people on the net claiming taking a broadside brain shot.
-------------------- John aka NitroX
...
Govt get out of our lives NOW!
"I love the smell of cordite in the morning."
"A Sharp spear needs no polish"