In response to the " bone busting" quality of any head; I usually try not to shoot dense bone.

However, on the occasions that my broadhead hit large dense bone, I have never had a problem.

In 1973, I hit a large buck in the spine with a 70' s circa 6-blade Wasp, and the head embedded in the spine and I was not able to extract it. I was shooting a 51lb. American " Cheeta" recurve. I suppose the fps was around 170 fps. On another occasion, while using a 52 lb. Hoyt recurve, also about 170 fps, I broke the shoulder on a doe with an older " Satellite" broadhead that also had a cone tip.