maybe he's just whinging? After all, getting through dense bush must be hard for a guy that size, no matter what he's carrying!
why not make him a holmegaard? shorter bow with a longbow's easy draw, lots of punch. If you go wide with a tension-strong wood (pick one), you can pull a 60# bow out of a stave 64" long, say, and that will be about mid-torso on him or so.
maybe he'd be better off hunting with a crossbow or a rifle?