Just be aware that crossbows, while generally having higher impact force, have the disadvantage of a shorter effective range. Cross bow bolts do not
have feathers and are not suited for distance shooting. They take time to reload and cock, and are better suited for defense than hunting in a
survival situation. They do have the advantage of being simple for beginners.
If what you are after is a modern compound bow, here is a guide for selecting a compound bow that is right for you:
www.huntersfriend.com...
Here is some general Bow information and a discussion of several bow types:
www.mrfizzix.com...
If what you are looking for is a superior bow, that does not rely on modern materials and difficult to replace parts in a survival situation then you
should consider the Mongolian Bow. The Mongolian Bow is still considered the best bow ever developed for war or hunting.
www.coldsiberia.org...
While the Mongolian Bow takes time to master and build, you can build an effective Survival bow with simple tools. Here is a great link to get you
started with instructions from an "old school" master:
www.wwmag.net...