If you want a great hunting and all around sling, you want to get a "Ching Sling" . Its the quickest sling to get into action for hunting or shooting. Theres no fiddling with it, just put your arm thru it and your slung up. You do need to add an extra swivel stud just ahead of the mag well on your stock. Its not hard, and you can do it yourself. Here's a link that explains it.
http://home.netcom.com/~chingesh/chingsling.html#CSling