RE: Lightweight hog and deer gun
I have never gone hog hunting but from what i have read, a larger caliber is ussually prefered.. like you said 30 cal or better, as far as the light weight goes you seem to like lever action and Browning makes a sweet one... i have 2 and both are about 6.5 lbs.
They come in many different calibers, you might want to think about the .358 winchester.
A nice big bullet for those pigs..it come in 200 grain from the factory loads and you can make your own with 250's. And the .358 does a nice job on deer too.