Yep, that's the 45-70 all right; a buddy of mine has one, and i personally didn't like it. I can do just as much with my 303, 30-30, and 30-06, as he can do with that 45-70 of his. I suppose it's what you're used to as well, though. I personally have never needed a caliber larger than the 3 I just listed. But, again, to each their own.

So, DotD, what rifle caliber are you going to settle on, if you decide to get one?