I looked at the website you listed and those appear to be good slings but I've never used one of theirs. Near my location we have Academy Sporting Goods, Wal-Mart, Dicks, Gander Mountain, and a Cabelas a little south of my location. Those stores all have slings and I'd try one of those out where you can actually go in and handle a sling. Good luck with that .308 Savage, it's a good caliber. I've got a .308 in an early 70's Belgium Browning BLR and have taken many hogs with it. Good look in your quest for a new sling.....