It doesn't even need to be a top end bow. One of the biggest moose ever shot with a bow was taken with a 55 lb. longbow. The key is to know your equipment and operate responsibly within its limitations. (That bull was shot at less than 20 yards.) Educate yourself as much as possible about archery equipment and how it works, try out as many bows as you can within your set budget and pick the one that feels and shoots best for you. Then get some good instruction on how to shoot it properly, practice proper shooting under extreme conditions and really learn how to hunt. Any equipment you buy these days that is legal to hunt moose with in the area you're hunting will kill moose effectively, IF YOU KNOW AND OPERATE WITHIN ITS LIMITATIONS. ie) don't expect to kill moose at 60 yards with a 50# bow and 285 grain arrows and don't expect to draw an 80# bow at 0 degrees F that you've hardly ever shot and practiced with at 60*F, you'll be busting a nut trying to get it drawn as the moose walks away. Bowhunting is more about being a good hunter than it is about having the best gear.