Hi Blktail,
Hmm now when you say light loads Just how light are we talking?
Next question is what are you hunting and at what range?
My thoughts are:-
As the rifle you are talking about is considered highly collectable if the lighter loads shoot tight groups why not stick with the accuracy and originality of your rifle and just hunt with it. After all the .308 has a fine reputaion and loading the 30-06 lighter is bound to put you in the .308 territory velocity wise so..................................................?