If you're looking to shoot in competition, Turner slings ARE the best!!!  Do not use an original sling for position shooting, the stress will probably damage the sling.  If you are just looking for a sling for display purposes, you can get an original, or Turner offers an 1887 reproduction too.  Richard Turner purchased all of the sling equipment from Rock Island Arsenal, so his slings are made on the actual RIA equipment too!

Web slings such as used on the Garand are legal for shooting in vintage competitions also, and you can order one from the CMP for about ten dollars!!!

On the subject of slings, why is it that people always post pictures of their rifles (not just Krags either) with the slings all loose?  Unless shooting in position (prone, sitting or kneeling), you don't need a sling.  Yet, I always see rifles sitting on a shooting bench with the sling loose.  Tighten those suckers up!!!