There are chrome lined barrels and chrome moly barrels. You don't line a barrel with chrome moly. If you want a good SHTF gun, get a chrome lined. They are more fogiving of imperfect maintenance. If you want the best possible accuracy get a chrome moly barrel. This is all relative, of course. I have a chrome lined 20" A-2 that will shoot 1 1/2" 60 shot groups at 100. I hve a friend that has a chrome moly "match" 20" that struggles to shoot 4" at the same distance.