That photo was going around this past summer.  Here are some flint heads in elk or bison vertebrae; both penetrated the spinal cord.....intact.

 

 

Not meant to be a knock on Abowyers at all guys. I know they're built like tanks and as high quality as any BH on the market!

But I'll stand by my original post about other quality Bh's...just my opinion, and you know what they say about those    

Guru is right. I haven't killed an elk or moose with a spine shot but have killed at least 6 deer that way. The Magnus I was the most impressive but Phantoms, Snuffers, Woodsman and Bear Razorheads all did the job and remained intact.

George those must have been back in the stone age with conpound bows before they evolved to using stick bows.

Well, in all honesty, it's a little amusing to see folks in "shock and awe" over what has been done for literally thousands of years.  There is nothing fantastic or magical about new broadheads and what they will do.  There are only people who never saw it before.

All of these new broadheads are very good heads, as are all of the broadheads that have stood the test of time.  But as a rule, and as a matter of fact, most are ignorant of what has went before, so they are easily awed by photos.  

In Duncansville, Pa., near Altoona, there is an antique depot that has a display of a small arrowhead of stone, imbedded in a very big vertebrae....also intact and into the spinal cavity.  History is there....we just don't bother looking for it.  Everthing is new if you don't know what's old.

Geaorge, I am gonna make a guess that those are not from arrows but from heavier atlatl darts.

Not a whole lot different
ChuckC