Metcalf's words are near 5 years old now. As far as I know, no one is even producing factory WSSM's any longer. And too, Metcalf has proven to be no modicum of wisdom over the years. One would most often do well to read Metcalf's advice, then do the opposite.

And we would expect Browning to make the claim that the barrels in these guns were as durable as "the competition." (But what competition is that?) It would be more convincing to see an independent test done... but the folks who have bought these rifles by the thousands have voted... and they say they're extremely difficult to get any decent accuracy from, and that barrel life is terrible.
Browning/Winchester began lining the barrels with chrome because the first guns released were torching the throats out really quickly (more so the .223 than the .243)... The WSSM's rep for torching barrels is well deserved, it seems. The chrome lining will help a little, and may assuage the casual shooter, but not the serious rifleman.
Add to that the cost (and ever increasing scarcity) of brass and factory ammo, and the fact that you can get similar performance from other cartridges already well placed in the market (the 22-250 and the .243 win)... and it's hard to justify the WSSM.
Dan