I went with the 35 Whelen AI - you get very similar ballistics to the 9.3 and you can still shoot standard Whelen ammo in a pinch. I would certainly not be against the 9.3, but I had an '06 donor rifle and the smith had the AI reamer sitting there, so that made the decision a bit easier. Had a second one built because I had everything to reload already. Next one might be a 9.3.