I think everyone has agreed, the heavier the better for managing recoil, spotting your own shots etc. Cartridge selection plays into this. You can get away with going lighter on a 6.5 of your choice versus a 338 edge for example. Everyone I have seen make an effort to go lighter has recognized the trade off between going lighter and the ability to spot their own hits and consistently manage the recoil in difficult terrain. Several, I know that have gone in the 7 to 8 pound range have gone back to a heavier rifle. For me the perfect balance is in the 10 pound range on a 6.5 or similar cartridge and 12 ish on something in the 300 win mag range. I have also noticed a huge difference in the stock choice. I have carried a 12.5 pound and 14 lb 338 edge for years. The weight difference does not seem huge, but the stock is wider on the 14 lb rifle and I can tell the difference for sure. I prefer to shoot the 14 lb rifle but prefer to carry the 12.5 lb rifle.