The WH series is no longer made. The T3 placed the WH. The main difference between the WH and the T3 is the stock. The WH has a thicker, heavier stock, whereas the T3 is slimmer and lighter. Othere than that, they are almost identical, and both shooters with excellent quality, fit, and finish (and not to mention excellent accuracy.)
That said, you can still find new, or close to new, WHs on the auction sites, although finding one in a .338 will be harder than normal.
Zachary