I'll take a different tack on an answer. Your original question was whether you should spend $1,000 - $1,500 (not counting new dies, load work, trips to the range, etc) on a new rifle to save about a half a pound?
If it were me, I wouldn't consider that. Honestly, for $1,000 I could buy a S***ton of gas, drive to the mountains on the weekends and do some late season hunting and pre-season scouting next year and end up gaining way more by loosing a few pounds and getting in better shape.
That's just my view.