Soup, I'm not clear if you're asking whether a lighter AR would be better, or ? Yours sounds like a great rifle but heavy as you said. Up to you if you can deal with the weight for hunting, but if you want a lighter rifle that is certainly an option. It's fairly straightforward to build a 20" AR that comes in under 7 or 8 lb scoped, but I'm not sure if that's what you're asking.
The heavier weight of the rifle you've got might be of benefit in keeping it steady though, and you do already have it. How much does it weigh with scope and an empty mag? The one I use comes in at 9 lb even, but I often use a suppressor on it for hunting which brings it to almost 10 lb.
