As I stated earlier in another post I landed as a first flight into Reno and having an empty airplane didn't worry about runway length but after a snow storm being the first flight in with no braking action reports found the braking was nil and only reverse kept me from going off the end with a 737. We came slowly out of reverse at 80 knots and into idle at 60 knots. That is when with 3,000 feet left realized we could only stop with reverse thrust. We stopped fine but braking action reports should be available and accurate.