Reviving this thread only because I have a couple of deer under my belt with the 6.5mm 140 grain Impact bullet. I'm running out of a 6.5 CM at 2680 FPS muzzle with an SD of 5FPS. In summary, they work just like an Accubond. First deer at 60 yards and took a quartering to shot on the point of the shoulder. Deer fell where it stood with the bullet breaking the near shoulder, top of heart mush and blown off, and 2" exit hole in the offside rib. Second deer was identical shot at 214 yards. Almost exact copy with a 1.5" exit wound. That deer also fell where it stood. I lost in the scope it fell so fast. Hope that helps those of you contemplating its use in the future. From what I have seen I am going to tackle black bear and elk with it next.