I have an SKB double rifle case I bought about 10 years ago. It has a few scratches, but works fine. It has been banged around some, but has not failed in providing proper protection to the rifles inside. The SKB cases I have seen are very well made, and reasonable in price. They are a big step up from the typical $30 / $50 hard cases you see, and should provide a life time of use. I am very happy with mine, and often use it to carry expensive camera equipment as well.
Larry