Not that I know alot about Texas deer huntin', I'm assuming that's where it will be used, you didn't say, but anyhow I figure you just want a lightweight gun to have one because in Texas you surely aren't totin' that 5 3/4 lbs very far from the truck to the tower stand mostly. So I figure you're not really in need of a light wieght , you just want one. As previously mentioned, you already have adequate deer rifles. If I was to gamble on a Weatherby for a deer rifle, I'd probably make it a 7mm08. Lightweight guns should have shorter actions because long actions just don't seem right. Besides you didn't define bigger game. No matter what you choose, it'll be fun to play with.
Enjoy
