Jake, I don't understand what you were saying about " the best that you could do...close to 3500 fps". Hornady #8 has 7 powders w/22 loads over 3500 fps and 13 loads over 3600. Nosler #7 has 7 powders and21 loads over 3600. Any one of which w/a 40 gr. V-max will destroy a Fox. Dick