I know that this is not the best set up but it is what i have. So I have a Tompson center Pro-hunter with a 22-250 barrel. I am loading the Hornday V-max sixty grain bullet over 35.4 grains of Varget, giving me 3600fps. I have practiced shooting bowling pins at 500 yards and can consitantly, hint the pins. My question is what is the longest realistic, range in which I can shoot praire dogs with this set up.