I've always thought the 357 magnum was an excellent caliber for the tree stand hunter that could pick his shot & make it with great accuracy. Also I think any of the proven jacketed SP's or HP's are the best way to go in these situations. No fly's on the 357 when used properly. Now the Python James is using might be a little inferior, I would probably send that thing out here to Idaho where it would be put to better use!!!
Made my longest ever revolver kill on deer with an 6 3/8's S&W using a Sierra 140 gr. jacketed hollow cavity.

Dick