Have a new barrel and McMillan A3 sporter stock coming for my sako A5 30-06 and was asked why I didn't upgrade the caliber to 308 Norma Mag. The rest of the story is that I am increasing barrel length/weight for more consistent long range shooting at wolves which are plaguing our area right now - 500 yards - 1200 yards. Can this change be made and is it practical?