If you want to shoot it, in a slung position, get the Turner NM sling. The sling keepers on the WWII type slings stretch. The best deal is a second. I bought a box of those from Turner over time, a number at Camp Perry. You have to have Turner point out the defect, to figure out what is "wrong". Most are barb wire scratches the cow got against fences. The slings I use get dark, scratched, nasty, in time anyway.
For most people a 54" sling is appropriate with a Garand.
If I'm not shooting, I'm reloading.