I can't name any gunslingers who could shoot arrows out of the air, no. I can't name any rangers who can lift rocks with their minds and heal wounds through sheer force of will, either. Trying to rationalize such abilities is utter BS.
I think everyone is repeatedly (and almost deliberately) missing my point. I have nothing against the Shianti Wizard class--I can totally understand why it exists (though using Shasarak to rationalize it is silly, because he's the reason for the Shadakine Wytch class, isn't he?). I'm just saying that in the whole of Magnamund, there has only ever been one. Just the one.
Bearing that in mind, the odds that someone who was not vertically challenged would develop a talent with the gun that equals that of the dwarves is much higher than the odds of there being more than one Shianti Wizard in a millennium.
What I'm really saying with this retardedly over-argued comparison is that if I want to be a gunner, I have to be a dwarf, and if I want to be a dwarf, I have to be a gunner, and I think this is dumb. I don't really want to be either, at the moment, but the option to be one or the other is closed to me, and I dislike not having the option. Capice? I feel the same way about the kundi--if I want to be a kundi, I have to be a mystic (though I do understand, with their tribal mysticism, why it's highly unlikely that anyone but the kundi would pick up on kundi magic). What if I want to be a kundi warrior? Surely such a thing must exist.
And if the Shianti can teach a human their uber-powerful magics, then the Dwarves can teach a human how to fire a gun like the Saint of Killers.