The hunter action is the same action used for the Montana. It is a great action. I use mostly Montana’s to hunt with and they are phenomenal hunting rifles.
The hunter is pretty much the Montana with a polymer stock and magazine. I wouldn’t hesitate to use one. I just prefer the feel of the Montana stock compared to the hunter. My hunter shoots just as good as the Montana’s.
I’ve never had an issue with the magazine either. Just remember, Kimber hunting rifles are not target shooting rifles.