In my opinion a cull buck is nothing more than a buck someone shot, had major ground shrinkage, and then had to come up with some macho explanation as to why they shot a little one. Any 4.5 year old buck is impressive whether he is a 5X2 or a 6X6. Unless, of course, the only reason you want to shoot a buck is to put it in a record book. Then someone needs to cull you from the hunting herd.