CASH,
I quit using them years ago as I found them too explosive. They kill quite well, but often do not exit. The last straw for me was while using the .308 150g SST in a 30-06 ahead of 49g H4895 for 2950fps. The buck was only about 80yds out and I placed the bullet tight behind the shoulder. No blood at all, but luckily I stumbled onto him in a thicket. .
I load the 165 SST for a friend that uses them in his 308 Win LVSF. They are still quite expansive at a lowly 2700 fps avg, but perform alittle better than when pushed harder.
I still shoot SSTs on paper a bit, but find the thicker jacket of the NBT to hold up a touch better on critters when one wants an expansive plastic tipped pill.
If you want the best of both worlds(Partition type penetration & expansion and still have steller accuracy), I would suggest the Nosler Accubond (NAB).