I've learned that Turner 1903's and Brownells Latigo slings are relics from the stone age, and completely worthless.
You either need the 3 Oz Uncle Mikes nylon "sling"
Or a fancy padded one, that looks like something your Old Lady would like to see in her europeon handbag collection...
Furthermore, only somebody shooting a "Match" rifle would need to use a real sling, as they apparently have NO use in real game fields (shooting off backpacks is where its at)