Buck Magnet is right speed does not matter to many ppl get caught up in the speed thing, speed is nice when it comes to judging distances(flater trajectory) the most important thing is shot placement and a good sharp broadhead and just take the shots you are confident that you can make. example is Chuck Adams he shoots the Reflex Caribou which only has an ibo rating of 254fps and he uses heavy aluminum arrows, and he has no problem taking large game with clean kills