RE: T/C Maxi-Hunter, Maxi-Ball?
I have tested the 350 gr. Maxi Hunters in wet phone books, and they provided almost exactly the same penetration as the 385 gr. Buffalo Bullets. And I have shot a couple of elk with the 385 gr. Buffalo Bullet/100 grains of Pyrodex. They were ideal for a broadside rib shot - wound up mushroomed out to a big frontal diamter, just under the hide on the off side. So, indirectly, I would advise that the Maxi Hunters would work just great - but shoot for ribs, and stay away from the shoulder.
Having said that, there are some better elk rounds out there - if they are legal and if your gun will shoot sabots. Roskoe