the way i look at it, owning both a 30-06 and 308, not much difference in performance I dont really think an elk at 200 yards knows or even cares what the difference of velocity between the two is........... according to some ballistics software I have it shows that a 30-06 with a 180 grain projectile at 200 yards to have only 75 fps more velocity over a 308 win pushing the same 180 grain projectile also at 200 yards. IMO the 308 being slighlty slower could actually prove to have better penetration because of the possibilty of bullet deformation from the slightly higher velocity of the 30-06. But with two cartridges with velocity so close like that with the same projectile you really cant say one is better then the other the margin just isnt big enough between them. 75 fps... I have had handloads with both my 308 and 30-06 to have an extreme velocity spread greater then 75 fps...... Jrbsr just ask yourself this question, what do you like better a short action or a long action? IMHO that is what it boils down to lol