When out on Tuesday night I thought I would head shoot a bunny at approx 120yds off sticks, needless to say the resulting strike sounded mighty like a body strike, on retrieving the bunny from a very wet wheat field I discovered that firstly it didn't need paunching as when I picked it up what remained of its entrails fell out, basically its complete back from its kidneys to its neck was missing!!! Surprisingly the rear end, so rear saddle and legs were fine. So in future I think bunnies shot with .204 will be head shot in the day light. Can't wait to find out the effect on a charlie!!