I agree with harvey1b, I have shot Muzzy 125 grain broadheads for years my broadheads have hit rocks and even a steel pole once (not to proud of that one). The deer that I've shot have all died within sight of where I shot them. The first buck I ever shot the broadhead went through the right front shoulder and was sticking out the left hind quarter (two shoulders). So, from my experience the muzzy broadhead is the toughest broadhead out there. From the rocks, poles, and shoulders I have yet to break a blade.
harvey1b, I was over in your part of the woods last october antelope hunting, just west of town, by the ceneca gas station. We had so much fun that we put in again this year. Pretty country!! I love the smell of sage and seeing that morning sun come up over the horizon. It brings to mind one of Chris Ledoux's songs.