Which would be the better candidate between the 7wsm and 280AI for a long range deer and antelope rifle? Why? Is the 7wsm better because of the short, bottleneck case? Any advantages/disadvantages in having a rifle built in either of these on a remington/savage/howa action? With either of them it looks like I would have to rebarrel, so a cheap donor action would be required, and my guess is it would be one of these three. I would probably go with a B&C Medalist stock to save some $$$. Any other common sense items to add on/change out?