I've got a Weatherby Vanguard in 30/06, had a gunsmith adjust it as light as it would go. He checked and it was 4 1/2 pounds. I wanted it lighter than that so he ordered a Timney and installed it for me.
It's set to 2 1/4 pounds and I love it. My other big game rifle, a Browning A bolt is also at 2 1/4 pounds, so there are no surprises when I switch from one gun to the other.