I guess it's good so many guys won't take what they consider to be marginal shots. The argument usually goes like this:
"Imagine it's near last legal daylight on the last day of your once-in-a-lifetime elk hunt, and you get a marginal shot at the bull of a lifetime. You're gonna wish you had (insert bigger caliber here) so that you could take the shot."
That's obviously not a direct quote, but you see it on hunting forums. I've seen it in books and in hunting magazines as well, even from some well known gun writers. Seems like a bad message to be sending, but that's just my opinion.
I suppose range is the obvious exception - a 7mm rem mag will have a longer effective range than a 7mm-08, and some shots that are marginal in terms of range with the 7mm-08 will be okay with the magnum if the shooter is good to go at that range. But I'm thinking more in terms of things like angle - quartering away, through the paunch, that sort of thing.
