I agree with Auther , and will and that ,the animal you are shooting at will jump alot more with a bow shooting a light fast arrow , as its goint to be lots louder at the shot , if thats your concern . Im shooting around 265 fps and had a doe completly drop out of the way this year on a 35 yard shot , think Ill try some heavery arrows next year as , that is the first deer I have actualy seen drop from "jumping the string"