Not a cast kill technically (but the coup de grace was cast enabled). My .300 Win mag @ 150 yds put him on the ground, but was still alive (barely) when I walked up. I was anxious to go summon help, so I hastened his demise with a finishing shot out of my Ruger .41 mag BH and 255 gn WFN boolit.
http://i331.photobucket.com/albums/l...pst9x5rzpm.jpg