Hog Rifle
Here's a vote for the Savage Hog Rifle. Not sure what a new one costs, but I picked up a used one w/ a Nikon budget scope last year for $400.00 & tax.
Dang thing is a shooter, sure enough. The two I've been around, (mine and a pals) are easily sub MOA rifles with good ammo.
Savage made the original bladed rifle accuracy trigger, and the Hog Rifle has it. The rifle has the 20" tube you mention, though it is of a medium taper, not sporter. Off color green synthetic stock, which I like but others do not. Oversize bolt knob & threaded muzzle. Blind magazine, which I like on a rough use/field rifle, nothing to loose. Some complain the Hog Rifle is too heavy....but I do not see it as a carbine "carry much/shoot little" rifle. Rather it is a shorter rifle that has the heft of a full size one. Its heft, and the premo pad on it, make long strings of .308 tolerable.
I like it, and so does bamaboy, who I had to arm wrestle about every day last year he deer hunted, to get it back from him.