I use the Rocket Stellhead 125!! Excellent penetration! This year I shot a mule deer buck at 46 yards.The arrow went through the buck and hit numerous branches and stuck into the ground 6 inches. That is pentration! The buck only traveled about 40 yards before he expired! I used the rocket sidewinders for years and never had that kind of penetration. The steelhead is a great broadhead. I plan to use this broadhead for all size game, as it flys just like a field point. Has anyone out there had this kind of sucess with the steelhead???