I'd venture to guess that it could probably be loaded "down" to Whelen velocities without much trouble. Bullets don't seem to come apart with the Whelen, so you shouldn't have a big issue there. Or, if you want full bore, just use a good bullet, say a Barnes or Swift. I'd recommend that anyway for the stuff you might run into in AK.
Anxious for additional responses as I have a Mark X that thinks it needs a new .358 barrel. I only wish it had a std. bolt face.
