If that's a typical hunting scenario for you, get the revolver. I use both, and consider my Contender to be my primary hunting handgun, but my applications are typical American stuff like shooting from a tree stand, long distance shots, or shots where a follow up shot is unlikely to be necessary. I got a revolver just for hog hunting because they're dangerous, are engaged at close range, and may need a follow-up shot.
With the single-shot, I find that I can reload in about the same time I can chamber a second round in a bolt action rifle, it just takes some practice and an ammo holder that fastens to your wrist for convenience.