My .02
In all honesty, without access to trained trauma personnel most serious (as defined as to the head/thorax/abdomen or arteries) wounds will result in death or serious permanent disability. Essentially, you'd be back to Civil War era care- with all the horror that entails. I dealt with a few GSW's as a nurse, Catch a bunch of birdshot in the ass? Ok, that one is gonna make it (barring infection), but catch one in the shoulder- forget it- brachial artery is very vulnerable (in spite of all that bone) and is damn near impossible to deal with. IMO, probably the most likely to survive would be a wound to the lung, IF someone in your group manages to deal with the probable fragmentation and trauma, AND knows how to manage and insert a chest tube. Otherwise, if you are very lucky and the patient has incredible stamina and an equal will to live recovery is possible.
Note I said trauma personnel, not just any doctor, nor any surgeon. I watched a surgeon get so fixated on one element of a wound, that they lost sight of the rest of the patient's problems. Wanna guess the result? DOA. In some cases you'd probably be better off with a large animal vet.
