I don't want to point fingers here but how many of you that just posted have used SSTs on Moose or Elk personally????
I have used them in 6.5x55x140gr on everything from Black Bears, to Mule Deer, to WTs, to Moose and Elk. In most cases, with shots through the lungs.
Even after going through ribs on each side, I have never been able to recover a bullet. The WT I took last fall was hit on the inside elbow and the bullet went all the way through the brisket, exiting out the other side. That shot was at 400+ yards and was so low, because I under estimated the range. Yeah, embarrassing. I should have brought along the range finder.
The last Moose was two years ago. The bullet entered the shoulder blade, just under the spine and exited the other shoulder blade on the opposite side. Happily, the arteries under the spine were ruptured and he only went about 20 meters before collapsing. That shot was around 150 meters.
The Elk was shot the same year, on the same trip. A nice fellow was in a real dither after shooting a Limited Entry animal using a 338WM, loaded with SMKs. He hit the animal in the near side shoulder. His range was close, under 75meters. That is the real test of any bullet. Close range when the bullet is at or near max velocity.
Anyway, he broke the shoulder but the bullet came apart in the process and didn't penetrate into the vitals. The shooter was sick and out of his element. He was lucky, the animal didn't go far. Unusual for an Elk. If they can still move, they do. We found it about 250 meters from where he shot it, hiding in thick willow on the edge of a rock slide. Ugly.
I felt sorry for the guy, his confidence was badly shaken and he just didn't want to use his ammo again. Even though I assured him it would be an easy shot and his ammo would work just fine. He was actually shaking and wasn't about to calm down.
OK, I was starting to feel sorry for the Elk and finished it off for him. We were about a hundred yards from it and when we tried to edge closer, it would just move further away. It was to far for a reliable head shot, so I opted for the lung shot. Very similar shot as the Moose. The Elk was already weakened but still walked for about 25 yards. Again, I couldn't recover the bullet.
IMHO, the SST has a bad name from the old days when the bullets really were made with thin jackets. The newer bullets are of INTERLOCK design which were proven killers in other guises, so why would the SST be any different.
I also use the 165 SST in 308 Win and the 7-08 and 338-06. It has always proven dependable, as long as I do my part.
Now, I really don't know how well the bullets function out of magnum rounds at much higher velocities. Especially close up, like the SMK in the 338Win Mag. It may be similar. But in the 308Win, you don't get even close to those velocities and the SST will do the job well, if you do yours.