Also, what about the .500 S&W magnum?
Funny you mention this. Last night, after Mrs. Six read about that kid getting hit in the head with a .454 Casull, she asked how big a cartridge it is. I flipped through my stack of G&A and found a side-by-side comparison of the .44M/.454C/.500S&W to show her. While she was looking, the idea of a .500 S&W lever action carbine popped into my head.
I looked around on the 'Net this morning and didn't find anything mentioning it, but I figure we'll have to wait and see whether the .500 is a commerical success. It's still early in the game, and S&W might end up dumping the cartridge once the initial hype wears down. I bet that would make for a pretty interesting (and capable) brush gun.
I'd still rather go for the 1895G Guide Gun in .45-70, though. You know, just for "kicks".