The Kimberly Mountain Ascent looks to be very nice. I think it is out of my budget for now. Would all 280 A I be able to shoot std 280 rounds? Ive read a lot lately and some where I read you could not load either the 280 or 280AI too light powder wise as it would not function properly. Forgot the exact wording. In all these Comments I haven't seen anything on recoil. I failed to mention it. I have never shot a 280 but would assume the recoil would be about like 270 or 30 06. How much more recoil would there be if you did rechamber to AI with out the muzzlebreak? Thanks for all comments and suggestions.
Yes on firing .280 and .280 AI rounds. As far as what you've read, I can't comment because of lack of sufficient information.
Recoil generated depends on load, bullet weigh, rifle weight, etc ...
Perceived felt recoil is very subjective as it depends on end users recoil sensitivity. Having said that, rifle weight is your friend when it comes to recoil.
Try http://kwk.us/recoil.html