Optimum rifle weight depends on details. A big detail is how big and strong you are.
When I was a kid the heavy rifles were a burden for me. Then as I got stronger and in my 20's a Featherweight was just right for big game hunting on the hills.
These days as a senior I have the new lightweights for walking. However I still use the heavier rifles when close to the car.
Third from the top is my first Featherweight. A M99!