Looks likea lung hit to me, I can't see any cuts on the small piece of theheart that I see. Liver is behind the diaphram.......your in front of that.
What are the details on the shot for this one. Were you in a treestand/ground blind? The shot angle doesn't look steep but it is on a slight angle....... completely broadside?
I have had similar issues with broadheads for the last 3 yrs, it isn't the broadhead. Its shot placement. Here's what has helped me. If shot from the ground or a low treestand I aim for the center of the bottom half of the chest. If shot at a steep angle I aim a little higher...... about on the centerline or a little higher. Try this just watch the angles and read the info for each shot
http://www.bowsite.com/BOWSITE/FEATURES/ARTICLES/DEER/DEERGEOMETRY/
ORIGINAL: Kentster911
Inside