Is this the correct sling for my rifle?

Military Antiques, Military Collectibles and Militaria French Leather Rifle Sling: WW1 WW2 Era IMA-USA.COM

I can't tell if the end is correct for fitting through the ring. They are supposed to narrow somewhat which this appears to do but not much. I also understand the carbines had a slightly shorter sling. Can't tell a lot from the photos.