5231HG,Have you thought about a Model 740/742? And a Browning BAR can be chambered in .308. Not perfect alternatives, but those are the closest that I've seen available.
Lonesome Dove; Fishkiller,None, never seen the need.
I found this 7400:5231HG,
BEFORE you invest money in either a BAR or Remington semi-auto rifle for self-defense OR for hunting anything that seems likely to gore, trample, claw or EAT you, think twice or 3 times.
IF I soon do NOT find a Model 7600P, I plan to find & buy a "Plain Jane" & "early production" Model 760 in .308WCF (with the "corncob" fore-end, which will not be difficult) & cut the barrel down to just over 16 inches for hunting heavy and/or dangerous game "in the thick stuff".
(Fwiw, I have "no shortage of" Model 760 rifles in a variety of calibers BUT currently none that I want to "cut down" into a carbine/saddle gun.)