I had a DCRA No. 4 Savage in 308. Sold it in Ohio. About 6 months later, it showed at a gunshow in Michigan complete with a Pecar scope. Guy selling it claimed it was a rare NATO sniper rifle. Everything on it was beautifully done, from the scope pads to the mount. You should have seen the guy's face when I exclaimed "this used to be my rifle, but it did not have a scope on it when I had it."
I tell the story in case this might be the rifle you saw.