depends what kind of balance you want.. what rifle have you been shooting? Some balance forward bias and some not. Shooting the one well will not mean that the other will be shot well given your preference. Examples above. A s400 classic is more or less neutral balanced. A carbine slightly more rear. A HW97k is forward balanced. A TX200HC is not. depends what you are comphy with... nd then it depends what scope you slap on there. A FT scope on top will always push the balance more forward than a HFT scope. An old Nikko will have the balance further back than a new nikko due to eye relief. etc etc...
There are only two things infinite: The stupidity of man and the universe. And I am not sure about the latter. - AE