If you are truly backpack hunting, and you start out with a few extra pounds on your frame, those pounds will be gone soon enough. The 9 pound rifle won't get any lighter. I have proven this over and over.
Brad,
Interestingly, I have been asked to re-barrel a Kimber just as you describe; a little heavier at the muzzle to put the weight forward. Not exactly my preference , but I do as I'm told! GD