I haven't replied, because I was thinking hard about your question. First..is your barrel swamped or straight sided?
Did you purchase the gun, or is it one you made yourself? Reason is, if a swamped barrel, leave it alone.
If you made the gun, I'd take a long look at the fore end and think about whether you can take some more wood off. Many guns I see are too heavy in the front because there is just too much wood out there. A friend brought his to me and was amazed at just how much we took off the rifle, and how much bettter the balance was when done.
Overall, it's not an easy question to answer without seeing the gun. Good excuse to build another one?