Gray hunter here!!! I Crony'd my T/C 20" 500 S&W barrel today. The 3 shots averaged exactly 1,500 fps. The 350gr Horn. XTP at this speed is a serious threat to virtually any animal in North America. Remember, this is my load----18gr Tightgroup and Win. Mag. pistol primer. I don't know or care what factory loads might Crony.