If this should be somewhere else, please move it.
setting up the cotton/nylon web sling on your rifle (loop sling method):
http://www.ray-vin.com/tech/websling/webslinghelp.htm
leather sling (loop sling method):
http://www.turnersling.com/faq_how_use.html
setting up the leather sling and attaching it to your rifle:
http://www.turnersling.com/faq_how_attach.html
This is how to use the leather sling. I am using the nylon now, but I have started using the leather also. That way I can use whatever I have at the moment.
If you are not using a sling, you are going to be wasting your money at an Appleseed or RBC. A sling will steady your rifle enough to make that shot.
A "man" does use a sling, because he wants to make the shot that saves his family and castle. :)