Thanks for the information guys!
I am definately not arguing the fact that conicals would be a better idea for elk. We are just in a bit of a time crunch. He had the same model gun I do, and when he went to tighten the stock screw, it stripped out. He was able to find a ML barrel for his shotgun that day, and ordered it.
We tried loading the Great Plains, but they were WAAAAAYYYY too tight. We had some 300 grain SST's and they loaded and shot well. I think he bought another box of the SST's so that he had some extra.
I will look around some more and see what we can find for bullets. The deer season opens September 10th, elk the 16th, so we are running out of time for experimentation.
I am also a fan of "if the deer died, then how did the bullet NOT work?" question.
We'll see what we can come across of the mentioned bullets, and how dead set he is and comfortable he is with the SST's. Though it may not be the "best" choice out there, I would rather have any bullet through the lungs than a good bullet in the gut. Elk can run a LLLOONNGGGGGG ways.
Later,
Marcial